added vungle back into ios on studio branch
forgot a file for vungle
updated vungle for ios6 compatable libraries
added an non-ignore for the vungle.a
Eric updated things for slots
updated adcolony to new library for ios6
updated for ios6 iphone 5
forgot to add ignore for chartboost lib
merged master into studio to get bug fixes
add log message MOAI_FileOpenError_S

While this may seem redundant with MOAI_FileNotFound_S, there
may be cases where the file exists but can't be opened, e.g.,
due to permission errors. This also supports a safer code structure:
actually try to open the file and log if it fails, instead of checking
for file existence and then just assuming it will open.
use MOAILogMessages::CheckFileExists instead of USFileSys::CheckFileExists so we get an error message
Log if file didn't open successfully
check and log if sound file doesn't exist

I would have preferred to check whether the actual file-open
operation succeeded, but this would require adding a check inside
untz itself, which doesn't have a clear logging mechanism at
the moment.
- Camera support for iOS on moai
- Fixed not dimissing picker
Merged master into studio
Added the mobile app tracking sdk into the studio branch for ios
Adding IP address getter to MOAIAppIOS
Merge branch 'studio' of github.com:moai/moai-dev into studio
changes to mobile app tracker