Florin Bors, aged 8 from Bacau, northern Romania, wearing a bear fur takes a break from performing a holiday season ritual in Bucharest, Romania, Tuesday, December 16, 2014. In pre-Christian rural traditions, dancers wearing colored costumes or animal furs, touring house to house in villages singing and dancing to ward off evil. In recent years following the economic downturn in Romania, a European Union member since 2007, the tradition has moved to Romania's cities where dancers travel to perform the ritual for money. (Photo by Octav Ganea/AP Photo/Mediafax)

A visitor enjoys the Winter Wonderland Christmas Theme Park on December 16, 2014 in London, England. The festive event is held annually in Hyde Park and features a number of attractions including fairground rides, a Ferris wheel and a German market, and opens to the public between November 21 to January 4. (Photo by Carl Court/Getty Images)

Andrew Foxworthy and his girlfriend Francesca Moscardini take a ride on the star flyer on December 18, 2014 in Edinburgh, Scotland. The star flyer is one of a number of rides situated in Princes Street Gardens in Edinburgh along with a ice rink carousel and Big Wheel, open from late November and running until January 4, 2015. (Photo by Jeff J. Mitchell/Getty Images)

People run with their hands up from the Lindt Cafe, Martin Place during a hostage standoff on December 16, 2014 in Sydney, Australia. Police stormed the Sydney cafe as a gunman has been holding hostages. (Photo by Joosep Martinson/Getty Images)

Members of the public observe the thousands of floral tributes left near the site of the Sydney cafe siege in Martin Place December 17, 2014. Tough new national security laws failed to prevent a deadly hostage crisis in the heart of Sydney this week, Australian Prime Minister Tony Abbott said on Wednesday, raising questions about the usefulness of such measures. (Photo by Jason Reed/Reuters)

Women in angel costumes marching around the site of the Sydney cafe siege line up to receive an embrace from a man giving out “free hugs” to those mourning the victims of the incident in Sydney's Martin Place, December 18, 2014. Australian Prime Minister Tony Abbott on Wednesday ordered a sweeping investigation into a deadly hostage siege after tough new security laws and the courts failed to stop a convicted felon from walking into a Sydney cafe with a concealed shotgun. (Photo by Jason Reed/Reuters)

A view from the roof of Commercial Travellers Club building in Martin Place of the thousands of floral tributes for deceased hostages Tori Johnson and Katrina Dawson on December 18, 2014 in Sydney, Australia. Sydney siege gunman Man Haron Monis, was shot dead by police in the early hours of Tuesday morning after taking hostages at the Lindt Chocolat Cafe in Martin Place. Two other people died, 33-year-old cafe manager Tori Johnson and 38-year-old Sydney barrister Katrina Dawson. (Photo by Cole Bennetts/Getty Images)

Anti-government protesters carry the body of a demonstrator who was shot to death during clashes with the National Police in Port-au-Prince, Haiti, Saturday, December 13, 2014. Haiti's capital has endured a growing number of violent demonstrations in which protesters are demanding long-delayed elections and the resignations of Prime Minister Laurent Lamothe as well as President Michel Martelly. The protests also spread to other towns, including Gonaives and Cap-Haitien. (Photo by Dieu Nalio Chery/AP Photo)

The Malaysia administration office building, Palace of Justice, is illuminated with lighting and graphic during the Putrajaya Lighting and Motion Festival 2014, in Putrajaya, outside Kuala Lumpur, Malaysia, December 13, 2014. The festival was held from December 12 to 13. (Photo by Azhar Rahim/EPA)

This aerial photo shows Shiite faithful pilgrims gather between, the holy shrine of Imam Hussein, top, and the holy shrine of Imam Abbas, bottom, for Arbaeen in the Shiite holy city of Karbala, 50 miles (80 kilometers) south of Baghdad, Iraq, Saturday, December 13, 2014. The holiday marks the end of the forty day mourning period after the anniversary of the 7th century martyrdom of Imam Hussein, the Prophet Muhammad's grandson. (Photo by Hadi Mizban/AP Photo)

Visitors look at a cave in a salt mine, Khewra, Pakistan, December 13, 2014. Khewra Salt mines are the world's second and Pakistan's largest and oldest salt mine and a major tourist attaction, drawing up to 250,000 visitors a year and date back to 320 BCE. (Photo by Omer Saleem/EPA)

US Secretary of State John Kerry, right and Russian Foreign Minister Sergei Lavrov laugh, during their meeting, at Villa Taverna, on Sunday, December 14, 2014, in Rome. Kerry and Lavrov discussed the ongoing Middle East peace process, and rising tensions in Ukraine. (Photo by Evan Vucci/AP Photo)

Indians from various tribes argue with police blocking them from entering the Chamber of Deputies where lawmakers are debating the authority to demarcate indigenous lands at Congress in Brasilia, Brazil, Tuesday, December 16, 2014. Brazil's indigenous don't agree with a proposed constitutional amendment that would allow Congress to decide their ancestral land's legal borders, in place of the Ministry of Justice with whom negotiations had already started years ago. Brazilians are legally allowed to watch lawmakers' debate, but police at the scene said they didn't allow the indigenous to enter on suspicion that they would interrupt the debate. (Photo by Eraldo Peres/AP Photo)

Three Israeli suspects, members of the right-wing Lehava organisation, are escorted by security to a hearing at the District Court in Jerusalem on December 15, 2014. The three are suspects behind an arson attack last month that targeted a Jewish-Arab school in Jerusalem on November 29, badly damaging a classroom and slogans in Hebrew, including “Death to Arabs”, were written on the walls. (Photo by Ahmad Gharabli/AFP Photo)

The North Park Plaza building is imploded on Sunday, December 14, 2014 in Southfield, Mich. Oakland Community College owns the property just north of Detroit and auctioned off the chance to blow it up to the highest bidder. The college bought the 42-year-old building earlier this year and says it has no immediate plans for the land. (Photo by Tim Galloway/AP Photo/Detroit Free Press)

A man lights a cigar in a cigar club shop in Havana, Cuba, Friday, December 19, 2014. The coveted Cuban cigar is set to make its first legal appearance in the U.S. in years, with relaxed guidelines allowing American travelers to return with a few of the once-forbidden items in their suitcases. (Photo by Ramon Espinosa/AP Photo)

Contestants walks during the grand final of the Miss World 2014 pageant at the Excel London ICC Auditorium in London on December 14, 2014. (Photo by Leon Neal/AFP Photo)

Villagers hold containers to collect oil after an oil tanker sank in one of the world's largest mangrove forests in the Sundarbans, in Joymani village, Bangladesh, Saturday, December 13, 2014. The oil tanker carrying more than 350,000 liters (92,500 gallons) of bunker oil sank Tuesday on the major river flowing through the Sundarbans after being hit by a cargo vessel. The slick had spread over up to 70 kilometers (45 miles) of the Shela river, threatening several types of animals including rare Irrawaddy dolphins, a senior official of the Bangladesh Forest Department said. (Photo by AP Photo)

Winter sport enthusiasts take a break on the Crap Sogn Gion overlooking the green valley, in Flims, Switzerland, December 15, 2014. While some mountain railways are open in higher regions of Switzerland, there is hardly any snow in the valley. (Photo by Gian Ehrenzeller/EPA)

An Indian man feeds pigeons near a statue of Mahatma Gandhi in a garden on a foggy day in Amritsar on December 18, 2014. Seasonal fog and cold weather is taking hold in northern India. (Photo by Narinder Nanu/AFP Photo)

A group of friends take a “selfie” together outside the pro-democracy protest site in the Causeway Bay district of Hong Kong on December 15, 2014. Police arrested protesters as they moved in on December 15 to clear Hong Kong's last remaining pro-democracy site, with just a handful of demonstrators making a final peaceful stand, after the main camp was demolished last week. (Photo by Isaac Lawrence/AFP Photo)

An Indian child dressed as Hindu goddess Parvati to seek alms reacts to camera on the banks of the River Ganges in Allahabad, India,Thursday, December 18, 2014. Allahabad, on the confluence of the rivers Ganges, Yamuna and the mythical Saraswathi, is one of Hinduism's important centers. (Photo by Rajesh Kumar Singh/AP Photo)

People ice skate at the Grand Palais in Paris, Sunday, December 14, 2014. The Grand Palais skating rink opened to the public on Sunday and is the largest temporary ice rink created in France during the winter holiday. (Photo by Michel Euler/AP Photo)

An Iranian woman walks past mannequins locked to a gas pipe in northern Tehran on December 15, 2014. (Photo by Behrouz Mehri/AFP Photo)

Officials investigate an accident between the 1755 Amtrak passenger train and a Dodge Caravan where the female driver of the van was killed in Mebane, N.C. on Tuesday, December 16, 2014. The collision occurred at the 4th Street crossing in downtown Mebane but the van was ultimately pushed almost half of a mile west. (Photo by Scott Muthersbaugh/AP Photo/Burlington Times-News)

Participants in the annual Timber Truckers Light Parade head toward Myrtle Creek, Ore. from Riddle, Ore. Saturday December 13, 2014. (Photo by Michael Sullivan/AP Photos/The News-Review)

People walk around a geoglyph of sheep, the zodiac animal for 2015, Hitachi Seaside Park in Hitachinaka, Ibarak Prefecture on December 17, 2014. The-20-meter- long, 30-meter-wide artwork uses kochias ( summer cypress) for the parent sheeps' wool and pine cones for the animal's eyes and ears. It can be viewed from the park's Ferris wheel, which about 65 meters tall, through January 12. (Photo by The Yomiuri Shimbun via AP Images)

Rihanna shoots a video clip with fans at the trocadero, in Paris, France, on December 18, 2014. (Photo by Antoine Cau/SIPA Press)

Two visitors of Arab Gulf states visit inside the cockpit of a new Etihad Airways A380 unveiled in an event in Abu Dhabi, United Arab Emirates, Thursday, December 18, 2014. (Photo by Kamran Jebreili/AP Photo)

Thai women wade through floodwater after heavy rains triggered flash floods in the Thai southern city of Narathiwat on December 18, 2014. Parts of southern Thailand have experienced floods in recent days after heavy rains hit the region. (Photo by Madaree Tohlala/AFP Photo)

An Indian local walks with his yak on a snow-covered road during the season's first snowfall at Kufri, some 17 kms from the northern hill town of Shimla on December 13, 2014. A cold wave over northern Himachal Pradesh state sent the night temperatures dipping below the freezing point. (Photo by AFP Photo)

In this Sunday December 14, 2014 picture members of Compagnie 1602, dressed up as farmers, parade in the old town of Geneva, Switzerland during the Fete de l'Escalade.The “Fete de l'Escalade” (from escalade, the act of scaling defensive walls) is an annual celebration held in December in Geneva's old town, celebrating the defeat of the surprise attack by troops sent by Charles Emmanuel I, Duke of Savoy, during the night of 11. to the 12. December 1602. (Photo by Salvatore Di Nolfi/AP Photo/Keystone)