Replacing all occurences of BITSd with "BITS server"

We had two BITSd in the project (one on the Fonera and the other on the Web server), and this could lead to ambiguities.
Replacing "closed"/"open" enum literals with class constants to avoid coding mistakes (e.g. "closed" versus "close").
Merge branch 'master' of github.com:esseks/bitsd
Adding AWAY to Status model.
Merge pull request #8 from esseks/master

Adding AWAY to Status model.
Added a production mode for Javascript
Fixing virtualenv Make target. Now works on any POSIX-compliant shell.
Integrating production/debug logging verbosity setup with server code. Incremented JS version number in handlers.
Merge pull request #9 from esseks/master

Server code for configuring JS logging verbosity, JS workaround.
OpenID login experiments