Use link_to.

(cherry picked from commit d44a9bdbdea928ba63db5c337baef8e57d14f119)
Do not check permissions on extlogin/logout.

Addressing https://github.com/theforeman/foreman/pull/958#issuecomment-26486270 point 2.

(cherry picked from commit bcaa201c9ff7dad97c521792af1913af761460c9)
fixes #3312 - when authorize_login_delegation_auth_source_user_autocreate is set, creates the unknown authenticated user.

(cherry picked from commit c09a3c39ccd10555eb2b8d73f5858b50608e7f0c)
Merge pull request #1 from adelton/mod_auth_kerb-pr-1

Bring your pull request up-to-date.