Merge branch 'release-2.1.2'

v2.1.1 Fixed bug where '.enabled' property was not being taken into a…

…ccount during sizeToFit and layoutSubviews calls. [Issue 28](#28).

Removed all things related to BFPaperColors. Updated Podspec, Podfile…

…, CHANGELOG. Moved some code around a bit for readability.

Migrating to CocoaPods 1.0 was harder thant I thought becuase I forgo…

…t how to read documentation before doing things.

Continuing migration to CocoaPods 1.0

Migrated to Cocoapods 1.0

Added checks for a nil tapCircle thanks to GitHub user [Adam Szeptycki](

https://github.com/adamszeptycki). Added LaunchScreen.xib and updated project to recommended settings (Xcode 7.2) to get full screen layout.

Added checks for a nil tapCircle thanks to GitHub user [Adam Szeptycki](

https://github.com/adamszeptycki). Added LaunchScreen.xib and updated project to recommended settings (Xcode 7.2) to get full screen layout.

Fixed bug where loweredShadowOffset property wasn't being used. Added…

… CHANGELOG.md. Updated README and podspec.

Updated Podfile, Podspec, README.