Add DOI support to ACM translator

[dstillman]

Patch will be attached by nxmehta

​http://forums.zotero.org/discussion/1884/#Item_13

[nxmehta]

Didn't have the old source of the translator to diff and create a patch so just uploaded the entire source. I made it so it will parse DOI entries. I also fixed the keyword parsing as it was adding all sorts of whitespace to keywords which mangled displayed tags in the tag browser.

This is literally the first time I've ever touched JavaScript or XPath, so if I did something stupid feel free to clean it up. It works fine though.

[dstillman]

Looks like the line

keywords.push(keywordLink.textContent.toLowerCase().match(/[^a-z]*(.*)/)[1]);

would strip any accented characters too (though it's possible the keywords are all ASCII). Is it just whitespace that's the issue? If so, you can use Zotero.Utilities.trim() instead.

[nxmehta]

Thanks for the tip! I updated the code.

[mikowitz]

(In [2320]) -Closes #918. Adds DOI support to ACM translator.