Handle slideEnded event as well

Closes #319

* IE8 support

IE8 requires the ability to use the alternative directive syntax : <div rzslider ... ></div>

Fixes #313

* Update for new default template

* New template for IE8 support

* Update for new template

* oops

* Suggested fixes for #314

feat(maxRange): Add a maxRange option

#322

feat(minMaxLimit): Add a minLimit and a maxLimit

Add BoundPointerLabels Option

added new option boundPointerLabels (default: true). If it is false - pointer label will not stick
to the ends of slider.

feat(ticks): Add legend support

This feature enables to display legend under each slider tick.

feat(ticks): Accept numbers for showTicks/showTicksValues

Thanks to this feature, you can display ticks at intermediate positions without setting a fixed step

Closes #273

fix(rz-vertical rz-tick-value): Position long labels on vertical sliders correctly

305

Feat: Allow custom translate function when slider steps are specified

Closes #293

Prefix all classes with rz- #272

Prefix all classes with rz- to avoid conflicts with other CSS classes (e.g. from an other library)

Prefix all classes with rz- #272

This has been broken by previous commit that adds the RTL support.

feat(RzSlider): Add RTL support

Added rightToLeft option which will reflow slider from right to left ( or switch vertical if

vertical: true)

Fixed number precision when draggableRange=true

When there was set options.precision>0 (non-zero fraction part)
and moved a range there was a issue with number rounding on both
ends of selected range. Sometimes numbers had small value at far fraction.

It can be reproduced with live demo by setting, for example:
  minValue: 3.6,
  maxValue: 5.8
  floor: 0,
  ceil: 10
  step: 0.1,
  precision: 1,
  draggableRange: true

It's possible to produce value, e.g: 6.2999999999... but used precision
expects to see rounded value: 6.3.