Separate polling periods for new TwitterUsers vs updates.
Logging improvements.

Log warnings and errors to a separate file.
Use log4js config files.
Rotate logs daily and clean up after 7 days.
Update log4js config and don't use /tmp.
Log, not logs.
Restore working production log4js.json
Stop writing output to obsolete log files.
No create /data/logs on startup
Add colors to logging.
Merge pull request #82 from jsha/different-update-cycles

Different update cycles
Merge pull request #86 from jsha/log-rotation

Logging improvements
Display additional fields in block lists.
WIP
Store unblocks in Actions table instead of UnblockedUsers
Don't record duplicate unblock actions.
Fix comma
Replace deferred-source-deactivated w/ cancelled-source-deactivated
Issue #61 (priority: low)
Merge pull request #89 from BooDoo/issue/61/cancelled-source-deactivated

Replace deferred-source-deactivated w/ cancelled-source-deactivated
Merge pull request #88 from jsha/more-context

Display additional fields in block lists.
Stream all users.
Remove My Unblocks.