remove some excessively trailing newlines
spy/objects: improve SpyFile __repr__
spy/catcher: remove half-sentence in comment

I've long since forgotten what the other half of it said.
spy/catcher: better exception-handling strategy

Always raise a CaughtException, and install a hook to print it nicely if
it propagates to the top level.
update tests for spy.catcher changes
doc/api/spy: update for spy.catcher changes
spy/catcher: delete frames leading to chain.apply
use module proxies for auto imports
Remove the face-meltingly disgusting spy/dis34.py