Split up email address information in `mail_virtual_users`

Use the changed `mail_virtual_users` structure to ensure directories and
sieve rules are created for each defined account.
Remove primary_user from mail_virtual_domains
Merge pull request #109 from bryanjswift/explicit-mailboxes

Split up email address information in `mail_virtual_users`
update owncloud's apache config for better cache behavior
remove owncloud debugging tag
Merge pull request #112 from brucespang/owncloud-speed

OwnCloud speed
Add an RSS reader.
add a missing period
add test for selfoss login
Merge pull request #113 from brucespang/rss

Add an RSS Reader
Add and configure latest z-push

Signed-off-by: PajamaSoft <support@pajamasoft.com>
Add zpush_timezone setting for testing vars

Signed-off-by: PajamaSoft <support@pajamasoft.com>
Update README to include information about Z-Push.

Signed-off-by: PajamaSoft <support@pajamasoft.com>
Add tests for zpush
Remove zpush usage from README in favour of Usage wiki page.
Set log watch to weekly per http://primozverdnik.com/2011/05/logwatch-once-a-week-is-enough/
Also mailing to root (which gets forwarded to admin_email) for easier automated sorting
make the selfoss cronjob not clobber the owncloud cron job, and redirect the output to /dev/null so we don't get email about it
Merge pull request #117 from brucespang/rss-cron-fix

Fix the Selfoss cron job
silence the selfoss cron job
Merge pull request #118 from brucespang/rss-cron-fix

Silence the selfoss cron job