Revert "Ignore user files"

This reverts commit 81e5aac3c01b58d1fba7f0b2ca36096c4466c2c5.
Revert "Remove user files"

This reverts commit 3901f286f155f24fa472ea3790fd287cd6bc659c.
Revert "2 separate projects for OSX and iOS"

This reverts commit dbe4e18c7adad869c0719e408f313faa6f2b6cb8.
- Adding a iOS target.
- Remove user scheme files
Ignore user scheme files
Remove Box2D-ios target
Now builds macosx and iOS targets the same way as Cinder, with a fullbuild.sh script
Box2D project was not correct
Target iOS 5.0, so that we don’t fall in unresolved sincosf symbols.
http://stackoverflow.com/questions/19134132/sincosf-stret-crash-on-ios-5-1