Update docs for the upcoming v1.13 release.
Ensure that the pending release doc has critical notes.
Ensure upgrade guide versions are updated and tested.
Clarify some minor documentation points regarding features present in pending release doc.
Special care has been taken to update notes and docs for removal of the admission controller, which may be confusing for the estimated-small number of acive users.
Signed-off-by: Blaine Gardner <blaine.gardner@ibm.com>
(cherry picked from commit 06d18a7122)
Blaine Gardner
e4b0f8058f