Merge pull request #1 from shadowmint/master

Readme typo
Add support for grouping of items. Can be manually set and update automatically based on provided breakpoint pixel values
Upping pins for 0.2.1
Merge branch 'master' of github.com:hatchddigital/slide
Ensure order of breakpoints is correct before moving through loop. Set fallback for when outside the breakpoint list
Retag to correct version with bugfix
Refactor setCurrent method for better naming and flow
Add grouped slider to example
Add fallback support for grouping in browsers that do not support CSS translate
Up the pins
Update the controls after setting the new active state