Tweaked DateSwiftPicker and DatePickerButton, Implemented CustomSwiftPicker and added an example for it
Switched to using autolayout, Minor code changes
Implemented FontPickerButton and added example for it
Implemented TimeZonePickerButton and CustomPickerButton, Added samples for both new buttons
Implemented NumericUnitPickerButton, Added example for NumericUnitPicker button, Cleaned up the code to get rid of some verbose code
Updated documentation, Fixed a couple of storyboard values which were incorrect