Simplify cell-height calculation in comment view cell.
Merge branch 'master' of https://github.com/opfo/app

* 'master' of https://github.com/opfo/app:
  Organize view controllers in Xcode.
  Add proper default images.
  Change class of the comment input view.
  Style the comment input view.
  Fix images missing from Xcode project.
  Fix sizing and positioning of comment metadata view.
  Change left question metadata padding.
  Change so we are a tiny tad bit more efficient.

Conflicts:
	Code Stream/OPFCommentsViewController.m