Added skeleton mechanism to update server settings via rpc.

HEAD is now properly reset if mirroring is enabled.  Updated the
federation pull status enum to include no change and mirrored states.

* Clarified SSL certificate generation and configuration in light of the
hostname verificiation that JGit currently does despite
the http.sslVerify=false setting.

* Added some troubleshooting information related to filesystem
permissions and reading repositories.

* Switched from JavaService to Apache Commons Daemon.  Not sure what
happened to JavaService as it stopped working for me on Windows 7 with
Java 1.6.0_26.  Commons Daemon accomplishes the same thing and offers a
nice service control utility.

* Build script overhaul including building & publishing GO, WAR, Docs,
and Site.
* Restored JGit 0.12.1 dependency and backported Blame.  Got tired of
waiting for JGit 1.0.0 Maven artifacts.
* Changed Summary Page layout
* Optional cookie authentication
* Added icons for log, tags, and branches panels.
* Show last commit author and short message on branches panel.
* Unit testing.
* Documentation.

Reorganization of resources. Dropped most hard-coded webapp
configuration in favor of common web.xml file. Still contemplating
configuring git servlet from web.xml too.