assigning unassigned countries and territories

sources:
* http://en.wikipedia.org/wiki/British_Indian_Ocean_Territory
* http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/United_Nations_geographical_subregions.png/800px-United_Nations_geographical_subregions.png
* http://en.wikipedia.org/wiki/Christmas_Island
* http://en.wikipedia.org/wiki/Cocos_(Keeling)_Islands
* http://en.wikipedia.org/wiki/French_Southern_and_Antarctic_Lands
* http://en.wikipedia.org/wiki/Heard_Island_and_McDonald_Islands
* http://en.wikipedia.org/wiki/South_Georgia_and_South_Sandwich_Islands_sovereignty_dispute
* http://en.wikipedia.org/wiki/United_States_Minor_Outlying_Islands