Fixed warnings

detected by Xcode 6
color tweaks for iOS 7+

text fields and multi-value cells use the standard color in iOS 7+
inherit tintColor to child controllers
Fixed contentInset after popping from a child controller with open keyboard
Merge commit '2a2ac86e8ac8a83e84d3f7d6e9f8fbbaa1055579' into CDNCustomizations

* commit '2a2ac86e8ac8a83e84d3f7d6e9f8fbbaa1055579':
  Fixed contentInset after popping from a child controller with open keyboard
  inherit tintColor to child controllers
  color tweaks for iOS 7+
  Fixed warnings