Absolute monster of a checkin. Scraping and indexing of oral arguments is now supported. Next step is making search work.
Checking in to switch branches safely.
A number of big improvements to make search work.

1. Solr core installation now works and has working instructs in the docs.
2. Search for oral arguments works with all fields coming back appropriately, though with a few bugs.
3. cl_update_index is renamed and should now be generic for various types of objects (need to verify).