Target iOS 7 in example app
Update cocoapods
Use bundler to fix dependency mismatch
Fix deprecation warnings
Replace background image with UIToolbar

UIToolbar is used to achieve the translucent effect.
Remove text field image overlay
Style text view container
Use white background in the demo
Improve scroll view in demo

- fix positioning
- add chat bubbles to get an idea of the blur effect
Increase the height of compose bar view
Update button style
Increase text view font size
Use same font size everywhere
Correct placeholder color
Adjust caret rect size
Adjust utility button
Remove PSDs
Adjust position of utility button
Adjust positioning of text container
Correct button positioning and spacing