- 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/canvg/rgbcolor.js

@@ -2,7 +2,7 @@
 /**
  * A class to parse color values
  * @author Stoyan Stefanov <sstoo@gmail.com>
- * @link   http://www.phpied.com/rgb-color-parser-in-javascript/
+ * @link   https://www.phpied.com/rgb-color-parser-in-javascript/
  * @license Use it if you like it
  */
 function RGBColor (colorString) { // eslint-disable-line no-unused-vars