Created separate view for message bar
Minor code cleanup
Replaced message bar anim resources with coded object animator
Fixed missing background color, changed message bar interpolator, increased padding
Replaced message bar with toast
Add/remove toast moved to bottom, above editText
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into issue/2119-reader-message-bar
Merge pull request #2139 from wordpress-mobile/issue/2119-reader-message-bar

issue/2119-reader-message-bar