Fix missing return after %submit is rejected

Using %submit is currently only allowed if the caller has
Submit granted on refs/for/$branch. Early return once it
is known submit permission is missing.

Change-Id: I8da76454bf1efdf9fbc9ec662e1711489dbce009
(cherry picked from commit d07a5ab586ca38b067a3c3ded387353b0fba2c09)
Do not include project watchers on new draft changes

If a draft change is created by pushing to refs/drafts/master only
the reviewers explicitly named on the command line (which may be
empty) should be notified of the change. Users watching the project
should not be notified, as the change has not yet been published.

Change-Id: I703ea779106c025c8002e79d39c060208b2e119d
(cherry picked from commit 8690a108f6f63b58496d49c09e1e6ea954c7c7b0)
Merge "Do not include project watchers on new draft changes" into stable-2.10
Update ReleaseNotes-2.10

Change-Id: Ief964e57fca8a75f75719c6d3e16f8e16e7acdec
Show link on hover for h4 headings in documentation

E.g. in cmd-stream-events.txt we use h4 headings for the different
events and it would be nice to be able to link to them.

Change-Id: I1aaf496852a1793b34f1c694a2b2d486af0a028e
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
Merge "Update ReleaseNotes-2.10" into stable-2.10
Merge "Show link on hover for h4 headings in documentation" into stable-2.10