Bug 1058669 - Expand NS_IMPL_GETSET macro in nsDirIndex. r=mayhemer
Bug 1059390 - Part 3: Limit count only for new crash records in CrashStore._ensureCrashRecord. r=bsmedberg
Bug 1059390 - Part 4: Fix crash submission event file handling and add test. r=bsmedberg

This also changes things to use a "sub-" prefix for the generated submission ID
in order to distinguish it from a local/remote crash ID.
Bug 1059859 - Fix race condition in CrashManager._getStore() resulting in multiple stores being created. r=gps
Bug 1059940 - Part 1: Expose CrashStore.reset() to clear all data. r=bsmedberg