EasyScrollDots 2.0.0

Version 2.0.0
*Breaking change: Anchor points now should wrap each section rather than appear before each section. This makes the active dot much more accurate according to the section beginning and end. This is achieved by dynamically adding a placeholder final section and always looking at the previous section rather than the current one; the benefit of this is we don't need to measure the height of any section.
*Removed unnecessary use of scroll-indicator class name as we can just look for the data attribute.
*Removed legacy jQuery fall-back support.
*We are querying the DOM for indiElement only once now rather than unnecessarily querying twice.