0.4.0 and old Firefox Version 33.0.2

[fry2k]

Hello,
cause of company policies I have to support Firefox version 33.0.2.
Since you removed jQuery with 0.4.0 html5sortable isn't working any more because the Element.matches is undefined.
Firefox 33.0.2 uses mozMatchesSelector.
I fixed it here fry2k@fdd6dd1
I wasn't able to run "npm test" or "npm run test-plugin" successfully at my local copy.

[lukasoppermann]

Hey @fry2k,

thank you for your contribution. I added the suggested code and publish 0.4.1. Let me know if it works for you.

[nazar-pc]

When making it jQuery-free I decided to not support too old browsers. All modern Firefox versions (including ESR) supports element.matches(), so IMHO, maintaining prefixes compatibility for old browsers is up to downstream users.

[fry2k]

@lukasoppermann
Thank you verry much for your quick update. 0.4.1 works for me with ff 33

@nazar-pc
I understand and I'm with you removing browser prefixes if possible and cleanup the code.
If you remove this stuff it would be great if we could pass a filter function with an optional parameter or disable the filtering. Maybe if options.items is already an array we don't need a filter? Sure I could fork the repository and hack the stuff by my own but looking forward to updates it would be awesome if I could pass my hacks through a configuration.
btw ff 33 is from late 2014, 2 years old. sure the current version is 48 but at my company I have no influence to upgrade :/