Fix LDAP Extended Query example.

The old one was not valid LDAP filter syntax.
Improve Authentication Containers examples.

* The first example was wrong (cf. ldap_backed() in auth.inc which
  looks for a DC= part to determine a full DN.
* The second example now show the realtive DNs.
Don't gettext() the example strings.

They must not be translated.
Fix editing saving dhcp6prefixonly state

Reported in redmine #3097 and forum http://forum.pfsense.org/index.php/topic,64483.msg350255.html#msg350255
Merge pull request #716 from phil-davis/master

Fix editing saving dhcp6prefixonly state
When adding Port or URL alias default the alias type

When viewing the Port or URL aliases tab, and pressing "+" (add), make the default alias type match the Port or URL tab from which the user pressed "+".
Merge pull request #717 from phil-davis/master

When adding Port or URL alias default the alias type
Fix required options syntax typo
Merge pull request #718 from N0YB/Advanced_DHCP_Client_Options

Fix required options syntax typo
Add missing backup of gettytab
Validate firewall rule advanced options requirements

Checks that the user has selected a TCP Pass rule etc when using the state-related advanced options. Validates as per the checks that are applied in filter.inc when generating the actual pf rules.
Forum discussion: http://forum.pfsense.org/index.php/topic,64653.15.html
Bug report #3098
Merge pull request #720 from phil-davis/master

Validate firewall rule advanced options requirements
Fixes #3100. Fix spell and spaces issues
Use default RRD colors that are a little more visually distinct.
Merge pull request #722 from CharlieMarshall/rrd

Use default RRD colors that are a little more visually distinct.
Implement an option to allow using the IPv4 connectivity interface for sending the dhcpv6 information. Usually useful for ppp[oe] type links and some ISP
Update rrd.inc

Fix this error
php: rc.bootup: The command '/usr/bin/nice -n20 /usr/local/bin/rrdtool update /var/db/rrd/system-mbuf.rrd N:U:U:U:U:U' returned exit code '1', the output was 'ERROR: expected 4 data source readings (got 5) from N:U:U:U:U:U'
Allow advanced options state-related parameters to be used for TCP, UDP and ICMP

Allows the state-related parameters to be specified for UDP and ICMP as well as TCP. Discussed in forum http://forum.pfsense.org/index.php/topic,64653.0.html
Allow advanced options state-related parameters to be used for TCP, UDP and ICMP

Allows the state-related parameters to be specified for UDP and ICMP as well as TCP. Discussed in forum http://forum.pfsense.org/index.php/topic,64653.0.html
Merge pull request #729 from phil-davis/master

 Allow advanced options state-related parameters to be used for TCP, UDP and ICMP