Rename file->ns-sym to src->ns-sym
Remove old usages before reindexing
Remove comments on :op :constant -- it's handled
Index :new (gets lazy-seq bodies) and :catch (untested)
Make find-usages return easy for emacs to read
Kill the :op notes

That's almost all in the code now.
Use file-path as index key insted of ns-sym

so client can navigate more easily.
Fix up tests
Simpler zipper-seq

clojure.zip is so awesome.