- Update Opera and jQuery links

- Use `https://` (fix #172), including in prompt for URL and relevant code comments (where available and naturally not on namespaces)
- Comment out broken link in svg-editor.html
- Trailing space

editor/contextmenu/jquery.contextMenu.js

@@ -5,10 +5,10 @@
 // Version 1.01
 //
 // Cory S.N. LaViska
-// A Beautiful Site (http://abeautifulsite.net/)
+// A Beautiful Site (https://abeautifulsite.net/)
 // Modified by Alexis Deveria
 //
-// More info: http://abeautifulsite.net/2008/09/jquery-context-menu-plugin/
+// More info: https://abeautifulsite.net/2008/09/jquery-context-menu-plugin/
 //
 // Terms of Use
 //