pfSense

Set picture widget download file ext. Fixes #15767

Refine widget validation checks. Fixes #15844

Dashboard widget settings and widgetkey validation. Issue #15844

• Adds validation of submitted widgetkey values before use when storing widget settings and other similar operations.
• Adds validation of widget settings which were not already validated.

Validate inputs when killing OpenVPN clients. Fixes #15856

While here, fix the JS 'busy' icon switching for both the widget and status page.

Merge pull request #4645 from pypckompsite/master

interface widget: Prevent name and icon from wrapping

Merge pull request #4705 from GChuf/disksCookies

Use minified nvd3 vendor files. Implement #15782

Remove unnecessary config_init_path() calls

Remove additional cookie config from disks.widget.php