Not all special characters are being handled properly

[aecreations]

Not all special characters are being properly handled by the double encoding that was implemented in version 1.5.1.

The one example so far is the single quote ("’" - note that this the curly quote, NOT the straight quote), such as the web page title in the following URL:
http://www.salon.com/2014/06/09/cbs_news_huge_fatal_disaster_why_heads_need_to_roll_at_the_highest_levels/

[aecreations]

Also need to fix for the elipses character "…"

Example: http://water.epa.gov/action/advisories/acanthamoeba/index.cfm

[aecreations]

I thought I had fixed the right-pointing angle quote "»", but this character still isn't being encoded properly. Example (page title): http://www.urbanvillagemovement.com/

After some investigation, I found that the double angle brackets that I'm using to replace it is causing the problem:

var s = decodeURIComponent("The Urban Village Movement %3E%3E Creating Community");
print(s);
The Urban Village Movement >> Creating Community

[aecreations]

Need to handle the registered trademark ("®") symbol. Might also need to fix the trademark symbol ("™") as well.

Example: https://software.intel.com/en-us/realsense

[aecreations]

The degree sign ("°", 0x00B0) isn't being handled properly, either. It ends up as being saved as "%C2%B0"