Incorrect invocation of `ConfigManager.get()`
Removed reference to spurious "app" method

Fixes #146
Merge pull request #145 from huit/bugfix/144_cloudlet-uninstall-fails

Incorrect invocation of `ConfigManager.get()`
Merge pull request #147 from huit/bugfix/146_stack-up-vagrant

Removed reference to spurious "app" method
Merge remote-tracking branch 'upstream/master'