Revert "Revert "Migrating to new CLAide::Arguments (see CocoaPods/CLAide...

...#33)""

This reverts commit 0244f5b11d45d8c90049c1242644a1ca49a3583c.
Indeed, it was in the original commit. I think that it is the dotfile of some editor so for me it is fine to leave it there as it is.