task list - update

No new functionality, but uses delegated events. Runs faster, is less
code and it's more maintainable now.
model - bug fix for no callback exists

If a callback and an extension are specified and the extension doesn't
exist, a JS error would occur.  Error no longer occurs and now a warning
is thrown to the console.
rss - bug fix

Deleting a review would send the 'body' into a never ending showLoading.
reviews manager - bug fix

reviews are now editable again.
updated changelog