IS_IOS7_OR_LATER macro is corrected to return true for 7.0 version.
Merge commit 'fe8109dd5616eb412c94381106adb8d87ec7b05d'
Macros detecting iOS version was removed  to better decouple hardware from software.)
Macros checking for iPhone 6 & iPhone 6 Plus either with hardware or with screen height.
Merge pull request #12 from IvanRublev/master

ios version detection is removed for better decoupling. Quick macros for iPhone 6 & Plus detection are added.