Rename python-auth -> common-web submodule

.gitmodules

 [submodule "auth"]
-	path = auth
-	url = git@git.fsmpi.rwth-aachen.de:protokollsystem/python-auth.git
+	path = common
+	url = git@git.fsmpi.rwth-aachen.de:protokollsystem/common-web.git

config.py.example

@@ -73,7 +73,7 @@ SESSION_PROTECTION = "strong" # do not change
 # authentication
 SECURITY_KEY = "some other random string" # change this
 AUTH_MAX_DURATION = 300
-from auth.auth import LdapManager, ADManager, StaticUserManager
+from common.auth import LdapManager, ADManager, StaticUserManager
 AUTH_BACKENDS = [
     LdapManager(
         host="ldap.example.com",

shared.py

@@ -124,7 +124,7 @@ def code_filter(text):
     return "<code>{}</code>".format(text)
 
 
-from auth.auth import UserManager, SecurityManager, User
+from common.auth import UserManager, SecurityManager, User
 max_duration = getattr(config, "AUTH_MAX_DURATION")
 user_manager = UserManager(backends=config.AUTH_BACKENDS)
 security_manager = SecurityManager(config.SECURITY_KEY, max_duration)