Fix url to full paren percent encoding when replying.

* Don't know why this isn't done by default with `encodeURI` or `encodeURIComponent` but needs to be done otherwise we end up with `Re#comment-146b1dd0263):` when a script name and/or discussion has parens in it.

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May apply to #200 ... perhaps needing discussion. As I [mentioned previously](https://github.com/OpenUserJs/OpenUserJS.org/issues/200#issuecomment-47064518), and tested, copying from the Fx/SM address bar encodes parens... but is completely inconsistent in other browsers using that method. Fx/SM isn't immune because `encodeURI` and `encodeURIComponent` don't percent encode parens either... neither does copy link. :\

Test on dev at [http://localhost:8080/scripts/Marti/RFC_2606%C2%A73_-_license_and_licence_%28recovered%29_Unit_Test/issues/Testing_%28again%29#comment-1471d5de88d](http://localhost:8080/scripts/Marti/RFC_2606%C2%A73_-_license_and_licence_%28recovered%29_Unit_Test/issues/Testing_%28again%29#comment-1471d5de88d)

You can see the historical behavior at [http://localhost:8080/announcements/%5BJust_out_of_curiosity%5D(httpsopenuserjs.org)#comment-146ba914792](http://localhost:8080/announcements/%5BJust_out_of_curiosity%5D(httpsopenuserjs.org)#comment-146ba914792) < -- Only messes up when I have site JavaScript enabled for OUJS with NoScript installed.