First pass at upgrading to the next Aspen release
Move x_frame_options out to gittip.security

This keeps configure-aspen.py a little less cluttered.
Trim horizontal space and suppress pyflakes msg
Moving response timing functions into a module
Start timing at the very beginning

We can do this now that we're not storing the start_time on the request
object. And we can do that now that we're using algorithm.py.
Enable homepage updater to be turned off

It gets annoying after a while.
Get test_utils.py passing under Aspen HEAD
Switch to using algorithm['foo']
Fix test bug around homepage updater

We need to run it once before we run tests.
Start porting test suite to new Aspen test client
Merge branch 'master' into aspen-0-27
Convert test_utils.py to use AspenHarness
Prune old test fixture
Extend build_wsgi_environ to insert a user
Merge branch 'master' into aspen-0-27

Conflicts:
	gittip/testing/__init__.py
Fix my hacked up tell_sentry

@zwn has a different fix headed towards master on #1730
Start catching up with latest Aspen/Algorithm API

Stalling out because of gittip.db. I guess we should land #1734 first.
Merge branch 'master' into aspen-0-27

This is to pick up #1734, unglobalizing gittip.db.

Conflicts:
	gittip/elsewhere/bitbucket.py
	gittip/elsewhere/github.py
	gittip/elsewhere/twitter.py
	gittip/testing/__init__.py
	tests/test_elsewhere_bitbucket.py
	tests/test_utils.py
Test suite passes with test client from Aspen HEAD
Keep up with slight Aspen API change