Check for presence of Forge artifacts.
Search the download list for the requested version.
Download and extract the Forge distro.
Abortive attempt to use Jython.

The forge scripts require Python 2.7, but Jython 2.7 is still alpha.
Switch to calling the launcher script.
Switch to call Python interpreter directly.
Abortive attempt to archive Forge output.
Install and execute a POM to package artifacts.
Fix packaging of output files.

Unfortunately still having dependency issues.
First attempt at querying Central for deps.
Query Central directly instead of using client lib.
Clean up and refactory Central query code.
Add debug flags to suppress long-running steps.
Add facility for overriding hash lookups.