Gateway Status Widget keep IP address bold

Forum: https://forum.pfsense.org/index.php?topic=85187.msg467438#msg467438

The bold is specified literally in gateways.widget.php for the gateway IP box, so we need to send it bold from here also when providing an update.
Because this now uses a "/" in the string (to terminate the bold) have to choose another delimiter between the status text and status color - picked "^" because I can't think where it will appear elsewhere in the real data.
This whole string of stuff that is returned by getstats.php back to the browser is a long string with a bunch of delimiters inside delimiters already (vertical bar separated fields, inside that comma-separated fields...) and is already subject to stuff going wrong if any of the real text in the fields contains a vertical bar or comma or... Not about to try to re-engineer all that right now!
Change text and color delimiter to carat sign

To match change made in functions.inc.php
Improve check if no OpenVPN defined

Alternate version of https://github.com/pfsense/pfsense/pull/1376
This version retains the is_array() checks and then only does the count() if the is_array() is true.
Take whichever version you like.
Merge pull request #1379 from phil-davis/patch-11
Merge pull request #1378 from phil-davis/patch-10
Merge remote-tracking branch 'upstream/master'