added missing modules for makepot task + added suport for plural forms in html templates + added all major i18n methods in twig

tasks/makepot/node_modules/grunt/internal-tasks/subgrunt.js

@@ -0,0 +1,34 @@
+/*
+ * grunt
+ * http://gruntjs.com/
+ *
+ * Copyright (c) 2014 "Cowboy" Ben Alman
+ * Licensed under the MIT license.
+ * https://github.com/gruntjs/grunt/blob/master/LICENSE-MIT
+ */
+
+'use strict';
+
+module.exports = function(grunt) {
+
+  // Run sub-grunt files, because right now, testing tasks is a pain.
+  grunt.registerMultiTask('subgrunt', 'Run a sub-gruntfile.', function() {
+    var path = require('path');
+    grunt.util.async.forEachSeries(this.filesSrc, function(gruntfile, next) {
+      grunt.log.write('Loading ' + gruntfile + '...');
+      grunt.util.spawn({
+        grunt: true,
+        args: ['--gruntfile', path.resolve(gruntfile)],
+      }, function(error, result) {
+        if (error) {
+          grunt.log.error().error(result.stdout).writeln();
+          next(new Error('Error running sub-gruntfile "' + gruntfile + '".'));
+        } else {
+          grunt.log.ok().verbose.ok(result.stdout);
+          next();
+        }
+      });
+    }, this.async());
+  });
+
+};