test for django 1.7
django.setup()
AppConfig to avoid label conflict
fix duplicate app listing
dump_config command

(won't work in django <1.7 since in earlier versions django.core.management
 uses imp.find_module(), which doesn't work with namespace packages)
Merge branch 'master' into django17

Conflicts:
	.travis.yml
	tests/runtests.py
fix config
rename south migrations folders
various compatibility fixes
south might not be installed