Remove collect_any.py

This file has been lingering since speculation about merging the two
ga collectors. This has now been scrapped so this file can disappear.
Switch logging to backdrop.collector standard

We want all of our collectors logging in the same way so that we can
suck the lines up into logstash.

I have switched the print as this won't run through logger
Merge pull request #14 from alphagov/upgrade-logging

Upgrade logging