Fixed: Compiler can now handle only @action/IBAction declared return type when checking for 'Conflicting return type' method declaration.

Also made the warning message point to correct return type token when type is not declared.
Fixed: Should be 'objj_allocateProtocol' and 'objj_registerProtocol' not 'objc_allocateProtocol' and 'objc_registerProtocol'

Fixes issue #1