Added the DotArr::delete() function to unset values.
Added a test for DotArr::get() fucntion.
Missing commit for the modified TestCase base class to allow for testing non-public properties.
Added the DotArr::keyExists() function.
Added the Arr class to instantiate dot-notated array objects.
Added the DotArr::convert() function and use it in the Arr::__construct() function to ensure we have a dot-notated array if an initial data array is given.
Retry the branch aliases. They must be commited to master, so we need to wait to the next realease to see some changes.