WhisperSystems/TextSecure — pull request #992 by veeti (2014-03-04 10:06:15+00:00)
Title: Fix overdraw issues in the conversation view

Remove the redundant window background and row backgrounds to improve drawing performance.

Before and after (red is bad):

![before-after](https://f.cloud.github.com/assets/124223/2319818/7b19d006-a384-11e3-9320-421d0884b366.png)