Renamed CommandCallback to MGCommandCompleteHandler
Renamed MGBlockCommand to MGAsyncBlockCommand
Update after renaming
Merge pull request #16 from kompozer/develop

Renamed MGBlockCommand and CommandCallback
Merge branch 'master' into develop

Conflicts:
	Readme.md
Add MGBlockCommand for synchronous execution
Rename callback into completeHandler
Update callback to completeHandler in Readme
Set version to 0.1.0