Switch sass-spec submodule for NPM

Closes #1709

.gitmodules

 [submodule "libsass"]
 	path = src/libsass
 	url = git://github.com/sass/libsass.git
-[submodule "test/sass-spec"]
-	path = test/fixtures/spec
-	url = https://github.com/sass/sass-spec.git

package.json

@@ -77,6 +77,7 @@
     "mocha-lcov-reporter": "^1.2.0",
     "object-merge": "^2.5.1",
     "read-yaml": "^1.0.0",
-    "rimraf": "^2.5.2"
+    "rimraf": "^2.5.2",
+    "sass-spec": "^3.3.6-3"
   }
 }

spec @ d70a0b3a

-Subproject commit d70a0b3a34a8794b2b64baaec18f5949cf1777b9

test/spec.js

@@ -9,6 +9,7 @@ var assert = require('assert'),
   readYaml = require('read-yaml'),
   objectMerge = require('object-merge'),
   glob = require('glob'),
+  specPath = require('sass-spec').dirname.replace(/\\/g, '/'),
   impl = 'libsass',
   version = 3.4;
 
@@ -17,7 +18,6 @@ var normalize = function(str) {
   return str.replace(/\s+/g, '');
 };
 
-var specPath = join(__dirname, 'fixtures/spec/spec').replace(/\\/g, '/');
 var inputs = glob.sync(specPath + '/**/input.*');
 
 var initialize = function(inputCss, options) {

test/util/index.js

-var fs = require('fs'),
-  join = require('path').join,
-  spec = join(__dirname, '..', 'fixtures', 'spec', 'spec');
-
-/**
- * Normalize CSS
- *
- * @param {String} css
- * @api public
- */
-
-module.exports.normalize = function(str) {
-  return str.replace(/\s+/g, '').replace('{', '{\n').replace(';', ';\n');
-};
-
-/**
- * Get test suites
- *
- * @api public
- */
-
-module.exports.getSuites = function() {
-  var ret = {};
-  var suites = fs.readdirSync(spec);
-  var ignoreSuites = [
-    'libsass-todo-issues',
-    'libsass-todo-tests'
-  ];
-
-  suites.forEach(function(suite) {
-    if (ignoreSuites.indexOf(suite) !== -1) {
-      return;
-    }
-
-    var suitePath = join(spec, suite);
-    var tests = fs.readdirSync(suitePath);
-
-    ret[suite] = {};
-
-    tests.forEach(function(test) {
-      var testPath = join(suitePath, test);
-      var hasErrorFile = fs.existsSync(join(testPath, 'error')) && !fs.statSync(join(testPath, 'error')).isDirectory();
-      var hasError = false;
-      if (hasErrorFile) {
-        var errorFileContents = fs.readFileSync(join(testPath, 'error')).toString();
-        hasError = !(
-          errorFileContents.match(/^DEPRECATION WARNING/) ||
-          errorFileContents.match(/^WARNING:/) ||
-          errorFileContents.match(/^.*?\/input.scss:\d+ DEBUG:/)
-        );
-      }
-
-      ret[suite][test] = {};
-      ret[suite][test].src = join(testPath, 'input.scss');
-      ret[suite][test].error = hasErrorFile && hasError;
-      ret[suite][test].expected = join(testPath, 'expected_output.css');
-      ret[suite][test].paths = [
-        testPath,
-        join(testPath, 'sub')
-      ];
-    });
-  });
-
-  return ret;
-};