Adjusted JsFiddle plugin to detect jsFiddle versions.

Prior to this change, {% jsFiddle ccWP7/5 result,js,html %} wouldn't
render the desired tab order properly since the regex pattern was
being capturing the /5 as part of the first of the tabs.
Revised the regex for JsFiddle plugin after further testing.
Merge pull request #1281 from elbowdonkey/master

Allow for JsFiddle versions.