EllisLab/CodeIgniter — pull request #2587 by vlakoff (2013-08-06 15:44:13+00:00)
Title: Fix various typos

Backport from #2586. Helps a little bit to reduce the current merge conflicts.

@derekjones It's a followup from [my previous message](https://github.com/EllisLab/CodeIgniter/commit/c9bf303220f90b0e71acd54d150fafc87df3df81#commitcomment-3737451)