Add WordPress and Twitter to statistics_json.  They don't recognise any of our
other connectors.
Remove deprecated random_channel_home.  It's been deprecated a month now,
and the functionality is available in the unified custom_home.
Package update
More betterer dirstats
Couple of typos
*sigh* third time lucky - with the template this time.
Don't allow dirstats file dumps without a config.