fixed Anahkiasen/rocketeer#35
Merge pull request #44 from yusukezzz/develop

fixed Anahkiasen/rocketeer#35
Simpler test for paths
Add stages contextual configuration
Close #45 - Add contextual connections options
Work on multiconnections handling
Work on connection flag
Add Rocketeer::execute and Rocketeer::on
Allow multiple connections in --on flag
Fix PHP 5.3 compatiblity
Don't run chmod if not permissions are set
Fix wrong command call
Use shallow git clone
Fix Rollback default behaviour
Add rollback --list option to pick from releases
Code tweaks
Add some tests
Bump version
Add option to manually set remote variables when encountering problems