scm: git: reduce saving heads times in fetching revisions (#8857, #9472)
scm: git: backout r8839 (#8857)
call "git log" only once instead of per branch in fetching revisions.
scm: git: backout r8840 (#8857, #9472)
reduce saving heads times in fetching revisions.
Prevent mass-assignment when adding/updating a forum (#10390).
Set user_id as a protected attribute (#10390).
Prevent mass-assignment when adding/updating a wiki (#10390).
Prevent mass-assignment when adding/updating a version (#10390).
Prevent mass-assignment when adding/updating a time entry (#10390).
Use safe_attributes= just like in #create.
Prevent mass-assignment when adding/updating a news (#10390).
