Initial fork merges

- remove params_lookup calls
- remove some parameters I don't want
- comment-out database parameter that can't be used currently
- don't force uids & gids
* fix style to be puppet-lint compliant
* use ensure packages for wget, git, jre
* use openjdk-7-jre-headless
* default version is now 2.7
* bind webserver to 8081 port
* bind ssh to gerrit's default port