Merge pull request #9 from esseks/master

Server code for configuring JS logging verbosity, JS workaround.
Merge branch 'master' of github.com:BitsDevelopmentTeam/bits-server
Adding Futures and CAres to Makefile target virtualenv.

They are not strictly needed, but Tornado recommends their usage:

* Futures is the recommended scheduler queue
* PyCares is an interface to the non-blocking DNS resolver which might be useful