IntelliCloud Facebook service

Windows service that:
- Checks if the IntelliCloud Facebook page contains new posts
- Sends new posts to database
- Keeps track of the time of the post that was last send to the database
Added references
Merge remote-tracking branch 'upstream/master'
Created the Facebook plugin

Created the Facebook plugin that can post comments to questions asked
through Facebook.
Facebook service - Added postId to web request
Added comments and changed variables to properties
Fixed merge problems pull request koekoek-master.
implemented all the service intefaces
Merge remote-tracking branch 'upstream/master'
Merge pull request #61 from daanvc/master

implemented all the service intefaces