Add will_present, on_presented, will_dismiss, and on_dismiss methods.
Remove 'ProMotion' file.
Use correct method to check.
Add specs for will_present, on_presented, will_dismiss, and on_dismiss.
Added a few more requirements to improve tests.
Merge pull request #173 from silasj/version-1.0

Add will_present, on_presented, will_dismiss, and on_dismiss methods.