synch configurations on noitd nodes into the DB

(In [312]) implement base64 decoding/encoding, refs #26

(In [313]) code reuse, pull this into utils, refs #26

The approach to this is to leverage the current feed from noitd to stratcond for configuration changes as well. At boot, noitd will add its configuration to the feed and again on any changes. As changes can happen via the console, it is possible to get a stream of 100 or 1000 changes over the course of a few minutes... This seems less than ideal and we need a way to detect quiescence before publishing the new config.

The file is tab delimited with one log per line. While jlog encapsulates this in a fashion that makes it possible to have line feeds in the last element, we don't want to restrict the implementation to publishing only via jlog. Also, configs are big. As such we will output the clean, indented XML, compress it, and base64 encode it with infinite line length. stratcond will undo the transformation and push it into the database.

(In [315]) fix up insert function for config info, refs #26

(In [316]) implements configuration pushing into the DB. refs #26

(In [317]) implements configuration pushing into the DB (need zlib). refs #26