pfSense

Better string check

Remove htmlspecialchars() call for a fixed string.

Populate gateway address field with tilde if there is no address or friendly interface.

This is to match the update data.

Bring in proper gmirror support for the GUI and notifications.
Made a general gmirror library to perform various gmirror tasks and get information, using some of the former widget logic to start. Updated widget to use this new code.
Added a Diag > GEOM Mirrors page that displays information about existing mirrors and perform various management tasks. Current actions include rebuilding a drive, forgetting disconnected mirror drives, insert/remove, deactivate/activate, clearing medatada. It's now possible to use the GUI to rebuild a failed mirror by performing a forget, then insert action to replace a missing/dead drive....

Use script-friendly gmirror status output to build this info, old method was breaking output when the mirror was being rebuilt.

Merge pull request #1205 from ExolonDX/branch_master_59

Merge pull request #1203 from ExolonDX/branch_master_56

Merge pull request #1168 from ExolonDX/branch_master_16

Display space usage for all mounted filesystems, not just /. Also display FS type and indicate if it's a RAM disk.

Update SCRIPT tags.

Add CDATA sections to SCRIPT tags in various files