Do not reconfigure dhcpd twice on secondary after config sync. Fixes #3797
Hide FreeBSD version from sshd banner. It fixes #3840
Replace GET by POST, it fixes #3833
Remove some redundancy and simplify changes made on last commit
Mark host as up or down before execute script, then script can use this information.

Submitted by: 	Jean Debogue <jean@wedebugyou.com>
Close pfsense_ng theme into pfsene_ng_fs
edit css to full screen
update loader.js - add jquery to display additional column button and create/delete columns
tidy up themes loader.js file
change css & jquery to allow for multiple columns for themes ending in _fs
better handling of widescreen theme
update css to fit full screen
traffic graph
fix spacing in pfsense_ng topnav