Merge pull request #40 from BadPirate/master

Add the ability to define custom colors for bubbles

Resolve Warnings - Use viewWillTransitionToSize instead of depricated willAnimate and didRotate

Address Warning - No longer use string literals for selectors

Address project file warnings, X-Code 7.3 -- Update to the latest Swift version

Merge pull request #30 from LoganWright/lw/swift-2-ios9

removing ios 7 support and basing layout on layout guide to prevent issues with tab bar

fixed text storage issue, working version

adding travis file

Merge pull request #25 from omarps/master

Minor tweaks: Optionals, init constructors with no args and count

Merge pull request #19 from little2s/master

fix chatInput miss bug

fix chatInput view miss for iOS 8 when showing keyboard under no translucent navigationBar

Resolving merge issues