Added: Copyfields for general search

The text field now has tags, parent composer, parent piece added to it so that general searching becomes google-esque.
Merge branch 'master' of git://github.com/ELVIS-Project/elvis-site
Merge branch 'master' of git://github.com/ELVIS-Project/elvis-site
Updated: Schema for title/voice filtration

Schema updated for filtering by title/voice; also updated for general searching.