Adding phpfpm module
Use double-comment, otherwise segenxml fails
added postgres and mysql socket support along with running phpfpm on a socket. Also switched to sysnet_use_ldap (with the default being false for the tunable)
Document phpfpm boolean

Without documenting the booleans, building the base policy fails with DTD issues
in doc/policy.xml
Fix startup error on reading/writing pipe in PHP FastCGI Process Manager

When starting up, the PHP FastCGI Process Manager verifies if it succesfully
fork'ed through a pipe access. Without granting this access, the following error
is displayed:

 * Starting PHP FastCGI Process Manager ...
 [15-Dec-2012 11:27:53] ERROR: failed to read from pipe: Permission denied (13)
 * start-stop-daemon: failed to start `/usr/lib/php5.4/bin/php-fpm'   [ ok ]

The phpfpm log shows:

 [15-Dec-2012 11:23:39] NOTICE: fpm is running, pid 28052
 [15-Dec-2012 11:23:39] ERROR: failed to read from pipe: Permission denied (13)
 [15-Dec-2012 11:23:39] NOTICE: ready to handle connection

See also bug #447326
phpfpm: add new booleans

- phpfpm_can_network_connect_http
- phpfpm_can_read_generic_certs
- phpfpm_can_clamav_connect_unix
Collectd: support various modules via booleans

Newly supported modules are:
- entropy
- hddtemp
- lvm
- nut
- process
- users
Collectd: add support for openvpn module
Collectd: add access to /etc/mtab (etc_runtime_t)
Collectd: add support for turbostat module
Collectd: introduce collectd_read_data
phpfpm: add boolean for reading collectd data