Add solr check to nagios
Add ckan solr instances to monitoring
Add solr prod to ckan servers
Solr monitoring on all machines
Delete s030 from inventory
Remove s085 from ansible hosts for now
No solr server on there
Add s126.okserver.org
Remove s121
Add s126 and update nagios checks for solr
Add solr setup to ansible
New machine for knowledgeforge
Move check_mk-server to check-mk-server

And simplify the role.
Rename check_mk-agent to check-mk-agent
check-mk-agent: move tasks to named task file
Fix check_mk

The whole check_mk setup was completely broken, because agents were
running 1.2.x and the server was running 1.1.x. A call to

    check_mk -u -II

on the server, which is supposed to refresh the inventory, was just hard
crashing with:

    Traceback (most recent call last):
      File "/usr/share/check_mk/modules/check_mk.py", line 4189, in <module>
        checknames = inventorable_checktypes("all")
      File "/usr/share/check_mk/modules/check_mk.py", line 1753, in inventorable_checktypes
        print check_info[k][3]
    KeyError: 3

This commit installs check-mk 1.2 from a PPA on both server and clients,
although unfortunately some clients will be broken (those that don't run
Ubuntu Precise).

This is still better than it was, though.
Remove s021 -- shut down at AWS
Add postfix queue deletion script
postfix: sort relay_domains, and fix whitespace
postfix: Move main.yml to postfix.yml