Bug 892547 - Sheets on Mac don't have a default option selected. r=enndeakin
Bug 901845 - add a pref to specify the length limit of words in word caches. r=jfkthame
Bug 901845 - add a pref to specify the max entries in a word cache. r=jfkthame
Bug 522515 - omit null urls from inclusion in userfont src descriptor array. r=dbaron
Bug 914567 - Cannot build directshow code by VS2013RC. r=cpearce