Fixed: Removed remaining modal, backdrop elements on closeModal function

[michaeljymsgutierrez]

Added total removal of elements on modal from DOM.
In some situation the closeModal function didn't remove all modal elements instead there are some remaining on DOM especially the backdrop and multiple creation of modal when used on same controller with others.

[coveralls]

Coverage decreased (-0.8%) to 83.908% when pulling a825acc on michaeljymsgutierrez:remove-remaining-modal-elements-onclose into 2db21c5 on dwmkerr:master.

[coveralls]

Coverage increased (+0.7%) to 85.393% when pulling efe663d on michaeljymsgutierrez:remove-remaining-modal-elements-onclose into 2db21c5 on dwmkerr:master.

[dwmkerr]

Looks good to me, although the library is not bootstrap specific and this assumes the modals are bootstrap modals, any thoughts on how we can keep it generic?

[michaeljymsgutierrez]

Yeah but, for some reason most used library for modal system is bootstrap modal ?
with same classes used.I think it is generic for now. And in what I have encounter using your awesome library, this fixed save my day.

[dwmkerr]

What about adding a flag to the options, perhaps a boolean called something like bootstrap, and then if the flag is present we can do the angular specific cleanup