migrations and some test fixes
Merge branch 'develop' into no_i18n_apphooks

Conflicts:
	CHANGELOG.txt
Merge branch 'no_i18n_apphooks' into apphook-fix

Conflicts:
	CHANGELOG.txt
testsuite working
Merge branch 'develop' into apphook-fix
add page toolbar to apphook root
added a namespace field to page. Made namespace requruired if the app has an app_name defined
docs and release notes
appnamespace cleanup
removed request.current_app and updated docs
fixes #1678
Merge branch 'develop' into apphook-fix

Conflicts:
	cms/api.py
	cms/management/commands/subcommands/uninstall.py
	cms/tests/management.py
fix tests
Merge pull request #1928 from digi604/apphook-fix

Apphook fixes