MOSYNC-3122. Changed camera demo alert strings and made small fix to antroid camera runtime.
MOSYNC-3122. Fixed image button bug on wp image button that was related to camera demo.
Merge pull request #428 from mvasiliniuc/master_CameraFixes

MoCamera "Hanging - Snapshot failed" related fixes
Merge branch 'master' of https://github.com/MoSync/MoSync into MoSyncLib