updated Haitian imagery sources


The Haiti imagery sources in iD were outdated. (perhaps they were taken from the wiki -which was outdated until last month, or potlatch ?)

While in Haiti in May/June w/ HOT, I reviewed the imagery sources and have updated this (And the wiki) to reflect the current imagery available for Haiti. 

* added iom_image2013 which is from IOM - http://www.droneadventures.org/2013/05/29/haiti/ 
The imagery is compatible with the odbl license, and HOT has used this imagery with mappers in Haiti. 

* geoeye imagery that andy allen has mirrored. We've determined this imagery is from 2010-01, changed the sourcetag from 2013 to 2010. 

* bing imagery, which is still available, remains listed.

* Removed old ones that are no longer available and/or had dead links.