Added closeModal() function to close modals programmatically
Updated documentation describing closeModal()
Update the range input code sample

Added min and max parameters and removed the unneeded label.
Code Clean :)
Merge pull request #270 from ramunasm/patch-3

Updated the range input code sample
Merge pull request #274 from rockincolton/patch-1

Code Clean :)
Merge pull request #261 from afifsohaili/feature/close-modal-inline-javascript

Allow closing modal programmatically
Added Sass Requirement to README
Merged and compiled pull requests