fixes #30

Function calls not highlighted in JS

Run tests in Electron

Update HTML highlighting & IntelliSense

Add Edge to list of browsers

Correcting documentation to better match JSDoc's style.

mkdirp: don't try to create fs roots

fixes #379

Fixed typos

…so it can be used to add browser support info in CSS IntelliSense.

Fixes typos in the javascript.contribution

Delete files not using

…and capitalise GET / POST. Old get/post set is still needed for
formmethod on input and button.

…auto isn’t a valid value for draggable. true/false/auto isn’t needed
once that uses a boolean.

…auto isn’t valid when using on <bdo> element, so need to find how to
show that. It is valid for the global dir attribute.

* Add menuitem element and define valid values for menuitem type
attribute
* Add valid values for menu type attribute
* Add menu to valid button values
* Remove old command element