Merge pull request #1 from tylerberry/master

Fix warnings under stricter build settings
Add podspec
Fix KVO issues.

The previous implementation would sometimes over remove causing a crash. Switched to a much simplier version of tracking if we've observed it or not.
Remove unused function to eliminate warning
Merge branch 'kvo-fix' of git://github.com/soffes/BFColorPickerPopover into soffes-kvo-fix
Fixed a problem with new observer method, caused when the popover was dragged off from a well.
Added .gitignore
Merge branch 'podspec' of git://github.com/soffes/BFColorPickerPopover into soffes-podspec
Changed podspec.
Updated podspec, set deployment target to 10.8
Expanded podspec.