Upgrade bootstrap material version to 4.0.0

updated material version (#80)

* updated material version

* updated fields except select

* updated select fields

* removed most css, because bmd takes care of this

* removed blue borders/backgrounds

* fix datetimepicker

* Fix bold labels

* Fix line through input field

* Fix radio and checkbox padding

* Halfway solution to proper long labels

* removed blue from radio and checkbox

* fixed (error) coloring, made labels float again

* Updated tests

* Styling and script fixes

 * don't execute onLegalFormChange if nothing has changed
 * increase setTimeout delays

* Fixed money input margin

* Fix long label wrapping

* Fix selectize label (little hacky)

* Remove floating label and move event function

* Fix tests