angular-ui/angular-google-maps — pull request #916 by nmccready (2014-11-24 17:59:02+00:00)
Title: Prop map perftweaks

These are O(n) to O(1) perf fixes in the way that PropMap is used. This bumps up some speed in markers and clustering markers. I wanted to tweak PropMap before I go ahead replace the clustering logic.