Make lang a property which can be set from config file instead of only from app_cfg.py
Remove language default value in TGApp
As it is now set by config defaults it can be removed from TGApp,
the testsuite needs to be updated to cope with the change and a
new test to check that is possible to set language from .ini files
is added
Instead of falling to cache_type dbm, use the global beaker default type for template caching
finishing parts of controller __call__ refactoring and update TGApp docstrings accordingly
Make so that calling two time the AppConfig.add_auth_middleware leads to the same result, also fix some tests that were working only due to previous tests setting up environment
Remove stray print
PEP8 cleanup
Add test to avoid future regressions on authenticators thing
Provide warning when failing to run startup/shutdown hooks
Make sure SessionRemover closes files and generators
Preparing new beta release