Added support for Dojo builder.
* Includes built builder and patches required to build the builder.
* _base/configRhino.js is required by the builder to run under rhino.
* added utility scripts for running the builder
* build.sh
* clean.sh
* compile.sh
* make-builder.sh
* prepare-dojo.sh
https://fedorahosted.org/freeipa/ticket/112
