Create SOMessageCell subclasses for video, text, and photo
Performance enhancement to video cell
Performance enhancement to text cell
Extract some duplication into base class
Fix merge conflict
More performance improvements - static date formatters
Avoid calling adjustCell when setting user image. Extract duplication in message cell subclasses
Fix time label placement
Message max width
Copyright notice
Merge pull request #9 from mspensieri/master

Improved scroll performance