Avoid view is not in the window hierarchy error on iOS8
Xcode says: Operand of postfix 'git add RateMyApp.swift' should have optional type; type is 'UIDevice'
Value of optional type 'NSString?' not unwrapped;
typo + internationalization feature
Translation for buttons
Merge pull request #1 from Plopix/master

Avoid 2 Xcode errors and "view is not in the window hierarchy error on iOS8"