Added Leaderboard classes to Android project. Added missing LeaderboardWriter property from Gamer class.
Added Missing Leaderboard classes to other all platforms.
Added missing Lidgren reference, no idea how it lost the reference.
Changes to allow Windows 8 to build with GamerServices changes.
Added Missing Exception definition to project.
AccelerometerAvailable will never return true when running in the simulator. Added check if running on simulator to return true.
Removed Android Application tag, which creeped in :(
Revert "AccelerometerAvailable will never return true when running in the simulator. Added check if running on simulator to return true."

This reverts commit 8280e7366aa6e85e5386743502736788976f3672.
Added missing Exception reference.
Merge remote-tracking branch 'upstream/develop' into develop
Merge pull request #1554 from CartBlanche/develop

Added Leaderboard classes to Android project. Added missing LeaderboardW...