Update README.md

Update website
Update InAppSettingsSpecifier.m for Xcode 5

Xcode 5: Conflict between length for NSString and NSLayoutConstraint, casting to NSString
Updating InAppSettingsPSTestFieldSpecifierCell.mil for iOS7

iOS7: Updating sizeWithFont (depreciated) to sizeWithAttributes
Update InAppSettingsTableCell.m for iOS7

iOS7: Updating sizeWithFont (depreciated) to sizeWithAttributes in TWO locations
Merge pull request #27 from LittleOrangeC/master

Updates for Xcode 5 and iOS7
Update for font type for iOS 7

pretty simple if statement
Fixing the Slider bug in iOS7

Sliders need to be at least 36pix
Merge pull request #29 from LittleOrangeC/patch-1

Update for font type for iOS 7
Merge pull request #30 from LittleOrangeC/patch-2

Fixing the Slider bug in iOS7
updating and adding podspec
switch to navigation controller
fix podspec version tag
the secondary color is now gray
Merge branch 'master' of https://github.com/kgn/InAppSettings