Build: Switch from grunt-css to the equivalent grunt-contrib tasks

Gruntfile.js

@@ -127,7 +127,8 @@ grunt.loadNpmTasks( "grunt-contrib-jshint" );
 grunt.loadNpmTasks( "grunt-contrib-uglify" );
 grunt.loadNpmTasks( "grunt-contrib-concat" );
 grunt.loadNpmTasks( "grunt-contrib-qunit" );
-grunt.loadNpmTasks( "grunt-css" );
+grunt.loadNpmTasks( "grunt-contrib-csslint" );
+grunt.loadNpmTasks( "grunt-contrib-cssmin" );
 grunt.loadNpmTasks( "grunt-html" );
 grunt.loadNpmTasks( "grunt-compare-size" );
 grunt.loadNpmTasks( "grunt-git-authors" );
@@ -354,15 +355,14 @@ grunt.initConfig({
 		}
 	},
 	csslint: {
-		// nothing: []
 		// TODO figure out what to check for, then fix and enable
 		base_theme: {
 			src: expandFiles( "themes/base/*.css" ).filter(function( file ) {
 				// TODO remove items from this list once rewritten
 				return !( /(button|datepicker|core|dialog|theme)\.css$/ ).test( file );
 			}),
 			// TODO consider reenabling some of these rules
-			rules: {
+			options: {
 				"adjoining-classes": false,
 				"import": false,
 				"outline-none": false,

package.json

@@ -58,7 +58,8 @@
 		"grunt-contrib-uglify": "0.1.1",
 		"grunt-contrib-concat": "0.1.3",
 		"grunt-contrib-qunit": "0.1.1",
-		"grunt-css": "0.5.4",
+		"grunt-contrib-csslint": "0.1.0",
+		"grunt-contrib-cssmin": "0.4.2",
 		"grunt-compare-size": "0.3.1",
 		"grunt-html": "0.3.3",
 		"grunt-git-authors": "1.1.0",