* Change from Error to TypeError
* Convert the `NAME` to upper case to make the consistency in the error message
* Update the remaining tests to be stricter
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
* check for data-interval on the first slide of carousel
* add updateInterval method for elements of a carousel
* add test for carousel interval being set during cycle
* update activeElement as soon as slide has finished (before transition end)
* only updateInterval before using it
Co-authored-by: XhmikosR <xhmikosr@gmail.com>