count() function

[cesaric]

Feature - Add count() functionality into Aerial. Have this already built into chateau project. Just need to migrate it in.

public function count():AsyncToken
{
_limit = 0;
_offset = 0;
return _execute(true);
}

private function _execute(count:Boolean = false):AsyncToken
{
...

[cesaric]

Closing as this was committed (commit :52cf8be638040f48f2ae4a2e94c53863475a99eb) to the 'new-structure' branch.