Changed vector_as to use Format.interpreter(). Minor docstring formatting.
Changed vector_as to use Format.interpreter().
Minor docstring formatting.

git-svn-id: b012e01f081ea6481df2f874d485c28c215da69f@35 b302ab98-2d32-0410-9738-bef0000a0cca

ryszard/whoosh,tallstreet/Whoosh-AppEngine,dokipen/whoosh