move from csslint to stylelint

Gruntfile.js

@@ -218,24 +218,26 @@ module.exports = function (grunt) {
       }
     },
 
-    csslint: {
+    stylelint: {
       options: {
-        csslintrc: 'less/.csslintrc'
+        configFile: 'grunt/.stylelintrc',
+        formatter: 'string',
+        ignoreDisables: false,
+        failOnError: true,
+        outputFile: '',
+        reportNeedlessDisables: false,
+        syntax: ''
       },
       dist: [
-        'dist/css/bootstrap.css',
-        'dist/css/bootstrap-theme.css'
+        'less/**/*.less'
+      ],
+      docs: [
+        'docs/assets/less/**/*.less'
       ],
       examples: [
         'docs/examples/**/*.css'
-      ],
-      docs: {
-        options: {
-          ids: false,
-          'overqualified-elements': false
-        },
-        src: 'docs/assets/css/src/docs.css'
-      }
+      ]
+
     },
 
     cssmin: {
@@ -464,7 +466,7 @@ module.exports = function (grunt) {
   if (runSubset('core') &&
       // Skip core tests if this is a Savage build
       process.env.TRAVIS_REPO_SLUG !== 'twbs-savage/bootstrap') {
-    testSubtasks = testSubtasks.concat(['dist-css', 'dist-js', 'csslint:dist', 'test-js', 'docs']);
+    testSubtasks = testSubtasks.concat(['dist-css', 'dist-js', 'stylelint:dist', 'test-js', 'docs']);
   }
   // Skip HTML validation if running a different subset of the test suite
   if (runSubset('validate-html') &&
@@ -515,7 +517,7 @@ module.exports = function (grunt) {
 
   // Docs task.
   grunt.registerTask('docs-css', ['autoprefixer:docs', 'autoprefixer:examples', 'csscomb:docs', 'csscomb:examples', 'cssmin:minifyDocs']);
-  grunt.registerTask('lint-docs-css', ['csslint:docs', 'csslint:examples']);
+  grunt.registerTask('lint-docs-css', ['stylelint:docs', 'stylelint:examples']);
   grunt.registerTask('docs-js', ['uglify:docsJs', 'uglify:customize']);
   grunt.registerTask('lint-docs-js', ['jshint:assets', 'jscs:assets']);
   grunt.registerTask('docs', ['docs-css', 'lint-docs-css', 'docs-js', 'lint-docs-js', 'clean:docs', 'copy:docs', 'build-glyphicons-data', 'build-customizer']);