Added formInputAccessoryViewDone delegate method

- Added formInputAccessoryViewDone delegate method
- Included and updated podspec file

Signed-off-by: Darren Ehlers <me@darrenehlers.com>
Merge pull request #40 from ehlersd/master

Added formInputAccessoryViewDone delegate method
Fixed URL typo in podspec

Signed-off-by: Darren Ehlers <me@darrenehlers.com>
Merge pull request #41 from ehlersd/master

Fixed URL typo in podspec URL