Updated browser support
Added description
Updated keywords
Events without touchscreen determination

* Events are defined as `array`
* Final namespace event definition in the constructor
Removed `isTouchScreen`method
`event-refactoring` build
Default value calculation

* If there is no default value defined calculating it instead setting
it to 0
* Same behavior as native element
Merge pull request #37 from andreruffert/default-value

Default value calculation
Merge `develop into `event-refactoring`
Merge `event-refactoring` into develop
Native input range element for comparison behavior
Snapping behavior for all steps
Merge pull request #41 from andreruffert/snapping-behaviour--fix

Snapping behaviour  fix
Release v0.2.8
Merge pull request #42 from andreruffert/develop

Release v0.2.8