replaced confess with throw_exception
Wrote NoBodyToInitializeInAnAbstractBaseClass & CannotCallAnAbstractBaseMethod
replaced confess with throw_exception
wrote tests for CannotOverrideBodyOfMetaMethods
Wrote exception class for CannotOverrideBodyOfMetaMethods
replaced confess with throw_exception
Wrote tests for MustPassAPackageNameOrAnExistingClassMOPPackageInstance
Wrote exception class for MustPassAPackageNameOrAnExistingClassMOPPackageInstance