[SAC] end of sysadmin contract - activity recap

I've completed my 50 hours of sysadmin work and here's a recup of
what was done with that time.

I've taken care of the following issues, closing them:

o https://trac.osgeo.org/osgeo/ticket/178 - mysql backups (9 years later!)
o https://trac.osgeo.org/osgeo/ticket/1657 - gogs backup
o https://trac.osgeo.org/osgeo/ticket/1677 - mailman "message held" form action is http
o https://trac.osgeo.org/osgeo/ticket/1684 - Reorganize trac instances location
o https://trac.osgeo.org/osgeo/ticket/1816 - trac ugprade
o https://trac.osgeo.org/osgeo/ticket/1827 - update mantra request page text
o https://trac.osgeo.org/osgeo/ticket/1830 - CS-Map SVN server issues
o https://trac.osgeo.org/osgeo/ticket/1844 - restrict allowed LDAP uid to avoid problems with services
o https://trac.osgeo.org/osgeo/ticket/1845 - review trac backup procedure
o https://trac.osgeo.org/osgeo/ticket/1846 - drop unused trac databases
o https://trac.osgeo.org/osgeo/ticket/1848 - spam fighting
o https://trac.osgeo.org/osgeo/ticket/1852 - remove "admin" ldap user
o https://trac.osgeo.org/osgeo/ticket/1854 - Remove local trac database backups
o https://trac.osgeo.org/osgeo/ticket/1855 - Drop openlayers trac instance (delivering backups)
o https://trac.osgeo.org/osgeo/ticket/1857 - tracsvn out of space
o https://trac.osgeo.org/osgeo/ticket/1858 - robots.txt for git.osgeo.org
o https://trac.osgeo.org/osgeo/ticket/1861 - ship openlayers blog backup
o https://trac.osgeo.org/osgeo/ticket/1863 - Allow trac to notify yet-to-be-known OSGeo users
o https://trac.osgeo.org/osgeo/ticket/1864 - trac maximum recursion depth exceeded while calling a Python object
o https://trac.osgeo.org/osgeo/ticket/1865 - disable trac pagesync
o https://trac.osgeo.org/osgeo/ticket/1866 - fix trac stats plugin bug

I've made some progress in these still open issues:

o https://trac.osgeo.org/osgeo/ticket/1489 - no wiki edit privileges on Fusion trac instance
o https://trac.osgeo.org/osgeo/ticket/1633 - renew ssl certificates

I've performed the following non-ticketed tasks:

o proj4 redirect - https://lists.osgeo.org/pipermail/sac/2016-December/007800.html
o email address change request from a user (via sysadmin@osgeo.org)
o osgeo6 mysql accounts review https://wiki.osgeo.org/wiki/Osgeo6#MySQL_server
o overall wiki SAC-related updates: https://wiki.osgeo.org/index.php?limit=50&tagfilter=&title=Special%3AContributions&contribs=user&target=Strk&namespace=&year=2017&month=2
o mantra shipping

I hope a new sysadmin role will be appointed soon to continue the rebirth
of the OSGeo infrastructure.