rose documentation: explain model time in SWT
Merge pull request #1276 from benfitzpatrick/doc.swt-time-real

rose documentation: explain model time in SWT
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