Check Strings (in XCode-style *.lproj directories)

Small hack to sanity check XCode-style strings files.

Just drop into a map with =*.lproj= dirs and the script will compare =Localizable.strings= in all directories to the one in =en.lproj=.

Implemented checks

• Missing translation compared to base language (en)
• Extra translation compared to base language (en)
• Translation is the same compated with base language (en)
• String matches translation key (en)
• Multiple instances of translation key
• Empty translation value