* Bundle the configuration necessary to run an eepsite out of the box
with Jetty - simply edit ./eepsite/docroot/index.html and give people
the key listed on the I2PTunnel configuration page, and its up.
plus minor bugfixes / refactoring / logging
* Always wipe the Jetty work directory on startup, so that web updates
are reflected immediately (Jetty does not honor the cache across
multiple executions)
in addition, refactor various file ops out of the DataHelper into FileUtil