t: rose task-run --cycle=CYCLE

New test.
Merge pull request #1269 from matthewrmshin/t.rose-task-run--cycle

t: rose task-run --cycle=CYCLE
rosa svn-*: notify and verify users

LDAP and Unix password user tools.
Improve diagnostics.

rosa svn-pre-commit: verify users in owner and access-list
rosa svn-post-commit: notify users in owner and access-list on changes