[bug 827318] Add --criticalmass flag

* adds a criticalmass flag to esreindex which indexes a subset of
  things required for some search development
* tweaks the output so it's
  sumo_app 2012-01-07 17:02 INFO LESS SPAMMY search.es_utils.blah:302
  and more readable
Fix my silly args thing
[bug 820943] Add Firefox 19 and hide 15.
Make Firefox 18 the default.