This commit includes a number of changes to reduce overall build
configuration time. These optimizations include:

- Removing the usage of the 'nebula.info-scm' plugin. This plugin
   leverages jgit to load read various pieces of VCS information. This
   is mostly overkill and we have our own minimal implementation for
   determining the current commit id.
- Removing unnecessary build dependencies such as perforce and jgit
   now that we don't need them. This reduces our classpath considerably.
- Expanding the usage lazy task creation, particularly in our
   distribution projects. The archives and packages projects create
   lots of tasks with very complex configuration. Avoiding the creation
   of these tasks at configuration time gives us a nice boost.