Updated UserVoice to Version 3

I've updated UserVoice to version 3 which came out a few days ago for iOS 7 support. In addition, I've refactored the layout to this binding. Creating a 'fat' binary for i386 and ARM support results in a "dll" that is over 14mb - which is rediculous for a tiny library like this. So, instead, I've refactored the project to use the i386 (simulator library) when running with DEBUG and ARM (ios library) when running with non DEBUG targets. This reduces the size of the overall library by 1/2 since it doesnt need both. However, it means that this project must be linked to the main project since it needs to know which build target the project is being built with.

Since this pull request is a little odd you may choose not to approve it, which is fine, but since my projects are nearing the over air downloading limit i had to squeeze as much space out of each library as possible and this was one of them that was easy to reduce the size.