Fetch rss urls from rss_channels on startup

* The channel_filter table no longer exists after flattening of channel
options.
User RFC822 date format.
Handle flattened channel update

* A channel now has 1 parameter instead of many channel options.
Set channelId in RSS apps

* Set the channel_ids property in the drop
Use SelectConnection in consumer

* SelectConnection is preferred for for implementing
asynchronous consumers. It also caters for reconnection to the
MQ in the event of a disconnect. This way, no need for persistent
(re)connect via a thread
Merge branch 'set-channel-id-dev'
Remove dropqueue application
Standardise template base directory for log location

* Always use /path/to/logs when specifying the template
base directory for the log location