Enabled broadcast for UDP sockets (was disabled by default on iOS)
Added conditional compilation for explicitly enabling UDP broadcasting only for iOS
MOSYNC-2989 Added the __MS_XCODE__ define to the MoSyncLib too, removed the _llvm_ from the conditional
Merge pull request #412 from iraklisrossis/master

MOSYNC-2989 plus UDP broadcast fix
Merge branch 'master' of https://github.com/MoSync/MoSync into extensions