Tidy up "system_usermanager.php" XHTML

Add CLOSEHEAD varialbe and manually close HEAD
Add CDATA sections to SCRIPTS
Deprecate Ampersand in Anchor tags
Remove NAME from TR tag, not valid in XHTML
Remove WRAP from TEXTAREA and Javascript to take wrap off
Tidy up misc. XHTML

Close FORM tag correctly
Add missing TD and TR tags
Move NOWRAP into CLASS statement
Tidy up Ampersand XHTML

Deprecate Ampersand in Anchor tags
Tidy up "system_firware" XHTML

Remove WRAP from TEXTAREA and add Javascript to add wrap hard
Update rrd.inc

fixed NTPd graphs resetting when service restarts or reconfigured (thanks charliem https://forum.pfsense.org/index.php?topic=76620.msg422811#msg422811)
Update services_ntpd_gps.php

Fixed MRC->RMC typos in sentence types, display and fine-tuning for SureGPS card.
Merge pull request #1209 from ExolonDX/branch_master_01
Merge pull request #1210 from ExolonDX/branch_master_02
Merge pull request #1211 from ExolonDX/branch_master_03
Merge pull request #1212 from ExolonDX/branch_master_04
Merge pull request #1216 from nagyrobi/patch-14
Merge pull request #1217 from nagyrobi/patch-15