The user_saml app isn't fully working on OC 4.5.12. There are two issues that should be fixed by this PR:
When setting up the module (inside the settings page), all you get is a Token expired. Please, reload page message. The request token seems to be missing from the settings page, so this PR adds it.
The p() function isn't defined on OC 4.5.x, so the module just refuses to work. Now the app initialization method checks the OC version and defines p() if needed
The user_saml app isn't fully working on OC 4.5.12. There are two issues that should be fixed by this PR:
Token expired. Please, reload pagemessage. The request token seems to be missing from the settings page, so this PR adds it.