There is still an underlying issue that is being worked on, but at least it fixes highlighting when using the concise syntax when adding script tags w/ an src attribute (which means it doesn't expect a body of JS)
script src="http://www.markojs.com"
script src="http://www.technical-itch.net" // this works ok
script
--
someJS();
script // this is still broken
I will continue looking at this and collaborate w/ the author of the original grammar file to get this fixed, but will release this version to package-control so that this special case works. For now please don't use concise syntax when writing embedded js within the template (just use the regular <script> tag).