adds reindexing that works in view but not in test
moves reindexing to model on relevant art pieces
changes reindex to an after_save hook
tests for reindexing on building save
makes the reindexing private to the model
makes reindexing function private, calls aftersave
changes reindex call to symbol notation
Merge pull request #64 from osulp/feature/ReIndexArt

Fixes #55