[iOS] Update for “Native SDK 1.4.5 JP/KR”
- Remove : libz.dylib

Conflicts:
	ios/ANE4MobageSDK.xcodeproj/project.pbxproj
Update for Mobage Native SDK 1.4.6 :
[as] Added Offerwall API.
[as] Added showNicknameRegistrationDialog.
[iOS] Added Offerwall API.
[iOS] Added showNicknameRegistrationDialog.
[iOS] C++ Standard Library " libstdc+ (GNU C+ standard library)" -> "Compiler Default" only JP.

Other:
[as] Added RemoteNotification sound “default”.
Added Analytisc API for 1.4.6 private.
Fixed : Mobage_showNicknameRegistrationDialog can’t get callback bug.
Update for Mobage Native SDK 1.4.6 :
[Android] Minor changes on 1.4.5 MobageAd classes
[Android] Added Offerwall
[Android] Added NicknameRegistration
[Android] Added Analytics
[iOS] Fixed : 1.4.6 onResume error.
[iOS] Fixed : “cfb62beb7a796bf8b68963bf4367518c5fbdf985 commit” mistake.
[as] Change method name “OfferWallDialog” -> “Offerwall”.
[iOS] Remove ios/.gitignore
[iOS] Add ios/.gitignore.