Reorganized to Apache Standard Directory Layout & integrated Moxie
This is a massive commit which reorganizes the entire project structure
(although it is still monolithic), removes the Build classes, and
switches to Moxie, a smarter Ant build tookit based on the original
Gitblit Build classes.
The Ant build script will likely require additional fine-tuning, but
this is big step forward.
Added a script to facilitate setting the proxy host and port and no proxy hosts, and then it concatenates all the java system properties for setting the java proxy configurations and puts the resulting string in an environment variable JAVA_PROXY_CONFIG, modified the scirpts gitblit, gitblit-ubuntu, and gitblit-centos to source the java-proxy-config.sh script and then include the resulting java proxy configuration in the java command