remove inside support from tooltip + fix tooltip svg support + change makefile to rely on local npm install

Avoid loosing events attached on Jquery object if added via function in popover content

remove modal-open class
hopefully resolve z-index headaches

Added unit test to check that tooltips is not showed when leave event is triggered before show delay has expired AND the hide delay is set to 0

Cancel running timer for tooltips with delayed show, but instant hide. This prevents delayed tooltips from appearing if the mouse leaves the elements before tooltip is showed and the hiding delay is 0.

all add a few notes to js readme about updated event