Scroll to active textfield when showing keyboard

Initial solution. If keyboard won't come up reset your emulator. This will need some cleaning up as this was just first version.
Figured out the correct way to scroll to textfields when keyboard pops up

We don't need to instruct the scrollview to scroll. If we set the scrollview to only cover the area outside the keyboard then the textfield will scroll into view anyway.
Description of correct usage of scrollview with textfields
add gitignore file