make app localizable
start with German translation
update gems
remove rbenv gemset
localize settings string
update pods
fix pods build
update opensong.js
use new open song.js
update opensong.js
rearrange some files
Merge branch 'refs/heads/localize'

Conflicts:
	Gemfile.lock
	Podfile.lock
	iOpenSongs.xcodeproj/project.pbxproj