Modified the code from pull-request 55 to integrate the changes that were done to Master after that point. This includes the immediate update of points-badges after a card's estimates change.
Additionally, this version has significant performance improvements over pull-request 55. CPU usage for the extension is now 0% on Chrome most of the time and only slightly higher in FF.
Merge pull request #57 from SeanColombo/master

Modified the code from pull-request 55 to integrate the changes that wer...