Add Settings.bundle to template with support for CocoaPods acknowledgements
Merge branch 'feature/settings' of github.com:bitcrumb/liftoff into feature/settings

* 'feature/settings' of github.com:bitcrumb/liftoff:
  Revert addition of confusing add_script_phase method
  Use ERB to include/exclude the script in the Podfile that copies over the ackowledgements
  Remove dot
  Don't add version info by default, leave that up to the user via the run_script_phases setting & a custom overwrite of Settings.bundle
  Process Root.plist with ERB
  Add support for ERB processing of files inside directories
  Fallback to main group if no Resources group was found.
  Move generate_settings out of perform_project_actions so that it only happens for newly created projects.
  Installation of cocoapods is performed in front of project actions again so that Podfile(.lock) is commited in inital commit.
  Don't require Settings.bundle to be specified in app_target_templates of .liftoffrc file (since this would not take enable_settings option into account). Now moved into place automatically & adheres to the enable_settings option.
  Installing cocoapods should be last step
  Refactor setup of Settings.bundle into its own class
  Automatically update version info in Settings.bundle when building
  Copy Pods-Acknowledgements.plist to Settings.bundle (contains license details for Pods that specified any)
  Make sure bundles are copied as resources
  Add Settings.bundle to template