whitespace
remove an unused import
fortune: Use inlineCallbacks
Indentation
addquote: use a t.e.a.Transaction
searchquote: Deal with changes made in f9ccf06c5
qstats: Use inlineCallbacks
q{top,flop}: Use inlineCallbacks
quotes: Make more args of run_query optional

With inlineCallbacks, callback is not needed anymore in most cases.
Similarly, values=[] makes sense for most SELECTs without any parameters
Make run_interaction return its Deferred

If all functions using run_interaction return that Deferred as well, the
automatic addition of an errback works
setup_db: Run in a Transaction