Beautify Filter display

Fix #110 
Signed-off-by: Sheik Hassan <solergiga@yahoo.com>
These two blocks can be combined. The threshold is used to specify how many elements to display, if there are more, the ellipsis is shown. You can see the logic [in Avocado](https://github.com/cbmi/avocado/blob/master/avocado/query/operators.py#L66-L92). If you choose to manipulate the array like I did, make sure you make a copy locally.