1. removed some needless LARS notices
2. removed acs_methods and friends from the permissions documentation
and got rid of the commented-out table stubs.
3. dropping of permissions was broken in PG, fixed that.
4. cc_users and registered_users views have been sped up.
5. removed an unused and incorrect proc from revision-procs
6. updated acs-kernel to 4.6.3
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