Removed 2.5 from travis
Restore 2.5 support for the time being
Use werkzeug@sprint-branch in tox
Merge pull request #736 from ThomasWaldmann/sprint-branch

some more work on py 3.3 port
Test using itsdangerous with 3.x support
itsdangerous uses json instead of simplejson now
Fix some literals
Merge pull request #737 from untitaker/sprint-branch

Fix some literals
Response data is bytes
Use assert_true instead of assert_

assert_ is deprecated which causes annoying warnings
Use assert_equal instead of assertEquals

assertEquals is deprecated and its use inconsistent
Add missing msg argument to assert_true()
Use assert_in where appropriate
Use assert_false where appropriate
Add missing assertIn, assertNotIn methods on 2.6
module name is quoted in ImportErrors on 3.x
Make DebugFilesKeyError.__str__ return str on 3.x
Fix leak in leak detection code

If ensure_clean_request_context found a leak, it would raise an
AssertionError and not clean up the leak, and therefore affect other
testcases.
Merge pull request #739 from untitaker/sprint-branch

Fix leak in leak detection code
Fix .iteritems() access in flask.sessions