remove some unnecessary code form contactable's transform
subscribe to all customers on contact add
get only contacts in contactablesContactsBox since the current customer will be loaded in the collection
some fixes in contactables list
use keys to paginate
remove old infinite scroll
don't wait to contactablesHandler to make the view render faster
Merge branch 'devel' of javiber:Exartu/Exartu-CRM into devel