reciprocity/ggrc-core — pull request #1502 by SilasX (2014-07-02 23:18:06+00:00)
Title: Make flash checks performant with MutationObserver.

Per [74327786](https://www.pivotaltracker.com/story/show/74327786). MutationObserver is more CPU efficient in checking for the flash messages that need to be dismissed.