Raise an Informative exception if a problem is (most likely) related to user error and make Command::Help a subclass of Informative.

Make pod install take an optional podspec file to install the dependencies of instead of looking for ./Podfile

Add a dummy xcconfig file to the template and base the target configurations on. Also fix a few more other settings in the template. Closes #1.

Add a quick and dirty way to create a xcconfig file that the app bases its target configurations on.