Add support for dateFormat on DateRangeInputComponent

[flatrixnet]

Like DateInputComponent, the developer should be able to define the date format on DateRangeInputComponent .

These are the changes that I made on the file:
CoreComponents.JS
//Line ~ ~1139

var format = (myself.dateFormat == undefined || myself.dateFormat == null)? 'yy-mm-dd' : myself.dateFormat;

$("#" + myself.htmlObject + " input").daterangepicker({
posX: offset.left + leftOffset,
posY: offset.top + topOffset,
earliestDate: earliestDate,
latestDate: latestDate,
//change begin
dateFormat: format ,
//change End
onOpen: function() {
changed = closed = false;
myself.startValue = null;
myself.endValue = null;
},

[pamval]

Hey, there. Thanks for the contribution.

Any chance you'll do a pull request with that change?
way faster to integrate the change into trunk

thanks!

[flatrixnet]

Done

Thanks.