Use <js-module> in favour of <asset> for the JS.

This bumps the version to 1.0 since it's a non-backwards compatible
change.
Use <js-module> in favour of <asset> for the JS

Merge branch 'js_module' of https://github.com/agrieve/BarcodeScanner

Conflicts:
	README.md
	plugin.xml
delete plugin.xml.generate.php