pfSense

Merge remote-tracking branch 'upstream/master' into origin/master

Globally correct a few typos

• $x; > $x = null;
• removed duplicated cases
• fixed useless statement: (int)$x = $y
• removed poetic: if (!$x && $x) $x = $x

Remove latin-1 encoding of RSS feed

Many thanks to Gertjan in forum https://forum.pfsense.org/index.php?topic=87504.msg484017#msg484017
Specifically setting the output encoding to latin-1 was causing the "black diamonds" for special characters in the http://blog.pfsense.org RSS feed (e.g. the registered trademark sign after pfSense did not come out)....

moved some js from separate files to contextual .php

pfSense.js - to prevent a blob of scripts; move index-widget handling to
actual index, introduce events instead
*.js - moved to widget.php plus added dataFilter to prevent eval()ing
scripts twice

log.widget - replaced js processor with simple xhr that fetches html

firewall_rules - typo, duplicate $pgtitle
log.js - simple xhr html updater, no need for duplicate logic
log.widget - migrated

updated firewall WIP, fixed widget ordering

• ipsec - replaced manual panel with simple alert

implemented widget-config

fbegin/fend.inc - temporary added for non-migrated pages
firewall_rules - use buttons for actions
index - implement widget-config & close button
pfSense.css - +/- icons now handled in js
pfSense.js - better handling of widget actions...

Merge branch 'master' into bootstrap

Conflicts:
usr/local/www/carp_status.php
usr/local/www/diag_arp.php
usr/local/www/diag_authentication.php

Ticket #3997, teach code to track carp through uniqids(). Missing carp GUI changes and upgrade code

Fix IPsec widget for multiple P2, it fixes #4164