fixed some formatting of code, after adding scope variable for passing optional params object into slider directive.
fixed some formatting of code, after adding scope variable for passing optional params object into slider directive.

rbenjamint/angular-materialize,xxryan1234/angular-materialize,rbenjamint/angular-materialize,krescruz/angular-materialize,andfk/angular-materialize,xxryan1234/angular-materialize,andfk/angular-materialize,krescruz/angular-materialize