Removed duration option for transitionEnd event

Changelog

Utilities

• new utility one() to add an event listener once, jQuery style
• new utility emulateTransitionEnd()
• removed isIE detection from V4 73c27df

Collapse

• fixed some issue with Collapse when the component was unable to compute child elements' height, now the in / show class is added to collapsible element first and then the utilities can easily compute the maxHeight
• revert to previous Collapse behavior, now the component will not remove and re-add the collapse class from/to the collapsible element, solving some issue with more complex accordion structures 21a9471

Dropdown

• Fixed Dropdown clickHandler 86fae38 and 7f46c5b

All components 7f46c5b

• Alert, Modal, Carousel, Collapse, Tab, Tooltip, Popover now use transitionEnd

Other

• build scripts fixes 628a532