added missing exclude Files to TarGzTask
remove tab set space
Merge pull request #34 from bguse/master

added missing exclude Files to TarGzTask
Fix typo in GitRebase Deploy strategy.
Documentation.
Add Stage Constants.
Change Deploy Stages with Constants.
Tweak on compiler.
Send mail notifications.
Upgrade command.
Fix on Upgrade command.
Tweak readme.
Tweak upgrade command.
Tweak composer.
Update composer instructions.
Tweak doc.
Git clone strategy fix