restore invoke_addr to its previous value after running method called from native code.
Map SO_EXCLUSIVEADDRUSE to !SO_REUSEADDR

	This will make windows app that use that property work on *nix.
	Fixes bug #643475.
Merge pull request #136 from Unity-Technologies/socketExclusiveAddressUseUDP-4.5

Map SO_EXCLUSIVEADDRUSE to !SO_REUSEADDR
Merge pull request #135 from Unity-Technologies/unity-4.5-staging

restore invoke_addr to its previous value after running method called fr...