Update
Update
Update RFKeyboardToolbar.podspec
Update README.md
Update README.md
make buttons changeable with optional animation
update example to include changing buttons
example: order word buttons by frequency
Update README.md
Merge pull request #7 from zydeco/master

Add changeable buttons property and (optionally) animate button changes
Minor updates
Merge pull request #8 from ruddfawcett/pr/7

Minor updates