Bug 1002383 - Mark fallback cache entries correctly. r=ochameau

storeCache is async, so at the time markEntry was run for fallback
items, the cache entry might not exist yet which led to that the
fallback entries were not properly marked. Instead, we now send the
proper type directly to storeCache.
Bug 1001673 - Decrease default context menu delay r=vingtetun
Bug 1001182 - FxAccountsManager.jsm correctly handles {refreshAuthentication:0} r=jedp
Bug 1000755 - [about:service] Refine the format of output reports. r=dhylands