[minor] fixed jquery drag event

public/build.json

@@ -138,7 +138,7 @@
 	},
 	{
 		"public/js/slickgrid.min.js": [
-			"lib/public/js/lib/slickgrid/jquery.event.drag.min.js",
+			"lib/public/js/lib/slickgrid/jquery.event.drag.js",
 			"lib/public/js/lib/slickgrid/plugins/slick.cellrangedecorator.js",
 			"lib/public/js/lib/slickgrid/plugins/slick.cellrangeselector.js",
 			"lib/public/js/lib/slickgrid/plugins/slick.cellselectionmodel.js",

public/js/lib/slickgrid/jquery.event.drag.min.js → public/js/lib/slickgrid/jquery.event.drag.js

@@ -178,7 +178,7 @@ drag = $special.drag = {
 			case !dd.dragging && 'touchmove': 
 				event.preventDefault();
 			case !dd.dragging && 'mousemove':
-				//  drag tolerance, x² + y² = distance²
+				//  drag tolerance, x≤ + y≤ = distance≤
 				if ( Math.pow(  event.pageX-dd.pageX, 2 ) + Math.pow(  event.pageY-dd.pageY, 2 ) < Math.pow( dd.distance, 2 ) ) 
 					break; // distance tolerance not reached
 				event.target = dd.target; // force target from "mousedown" event (fix distance issue)

public/js/lib/slickgrid/slick-default-theme.css

@@ -6,17 +6,16 @@ classes should alter those!
 */
 
 .slick-header-columns {
-  background: url('../lib/js/lib/slickgrid/images/header-columns-bg.gif') repeat-x center bottom;
+  background-color: #f2f2f2;
   border-bottom: 1px solid silver;
 }
 
 .slick-header-column {
-  background: url('../lib/js/lib/slickgrid/images/header-columns-bg.gif') repeat-x center bottom;
   border-right: 1px solid silver;
 }
 
 .slick-header-column:hover, .slick-header-column-active {
-  background: white url('../lib/js/lib/slickgrid/images/header-columns-over-bg.gif') repeat-x center bottom;
+  background-color: #f5f5f5;
 }
 
 .slick-headerrow {
@@ -46,8 +45,7 @@ classes should alter those!
 }
 
 .slick-cell {
-  padding-left: 4px;
-  padding-right: 4px;
+  padding: 0px 4px;
 }
 
 .slick-group {
@@ -90,6 +88,10 @@ classes should alter those!
   background: #fafafa;
 }
 
+.slick-row.odd .slick-cell {
+  background-color: #f9f9f9;
+}
+
 .slick-row.ui-state-active {
   background: #F5F7D7;
 }