Add 'count' column to blacklists, rename 'created' to 'time', cc #238
Merge code paths for ichnaea.tasks.mark_moving_{cells,wifis}, cc #238
Tiny bit more factoring between wifi and cell paths.
Temporarily blacklist by time, permanently by repetition. cc #238
Merge remote-tracking branch 'graydon/bug-238-age-blacklist-entries'
Generate SQL dump of migration step, add missing type and set count value.
Re-use utcnow time in blacklist check and use more pytz.UTC.
Avoid intermediate blacklist set, directly adding to the session.

The query results are already part of the session, so modifications to
them will be committed without adding them to the session again.