Remove extra menu items in File menu

The duplicate menu items in the File menu aren't needed and just take up
space. It's also unintuitive that 'Exit' isn't the last item in the File
menu.
Optimize JNI to managed byte array conversion in JavaUtil

Unity provides a helper method to convert a Java array into a managed
array which is much quicker than making repeated overhead-heavy
AndroidJavaClass CallStatic calls.
Update plugin JAR to use GMS Core version 4.4.52. 

This updates the plugin to version 0.9.02 and provides new pre-built unitypackages.
Added null check for the raw object returned from GetRawObject().

If a valid raw object containing a null value is passed to
AndroidJNIHelper.ConvertFromJNIArray, it will crash.
Minor fixes to get current with the iOS 3.0 SDK
Merge pull request #169 from playgameservices/iosfixes3

Minor fixes to get current with the iOS 3.0 SDK
Changing the sign-in process for iOS to match our more modern flow
Revert last commit -- added wrong file.

This reverts commit c93f1414504a2c12260c7247ccd0f23d37223488.
Updated sign-in progress to no longer use deprecated methods
Merge pull request #110 from seandanger/master

Optimize JNI to managed byte array conversion in JavaUtil
Merge pull request #172 from playgameservices/iosfixes

Updating the sign-in process to use non-deprecated methods. Got approval from Damien. :)
Fixing a few bugs around participant status in iOS
Merge pull request #199 from playgameservices/ios_enum_fixes

Fixing a few bugs around participant status in iOS
Adding support for silent sign-in to iOS

Adding support to allow silent sign-in on iOS, which has been missing. Also, added a second button to the smoke test app to test this, and brought back our missing sdkTag.
"long" is a 32-bit data type in 32-bit iOS applications. Use "long long" instead.
Merge pull request #206 from MofoMan2000/master

"long" is a 32-bit data type in 32-bit iOS applications. Use "long long" instead
Merge pull request #203 from playgameservices/iosfixes3

Adding support for silent sign-in to iOS
Merge pull request #91 from pR0Ps/master

Remove extra menu items in File menu
Fixed RTMP crash, minor edits to score submit, re-export of all the changes over the last few weeks

Added a few checks for RTMP on iOS to avoid most crashes, made some minor edits to avoid submitting scores, and created a new build incorporting most of our recent changes.
Merge branch 'master' of https://github.com/playgameservices/play-games-plugin-for-unity into iosfixes4