Merge VS Code 1.21 source code (#1067)

* Initial VS Code 1.21 file copy with patches

* A few more merges

* Post npm install

* Fix batch of build breaks

* Fix more build breaks

* Fix more build errors

* Fix more build breaks

* Runtime fixes 1

* Get connection dialog working with some todos

* Fix a few packaging issues

* Copy several node_modules to package build to fix loader issues

* Fix breaks from master

* A few more fixes

* Make tests pass

* First pass of license header updates

* Second pass of license header updates

* Fix restore dialog issues

* Remove add additional themes menu items

* fix select box issues where the list doesn't show up

* formatting

* Fix editor dispose issue

* Copy over node modules to correct location on all platforms

build/lib/util.js

@@ -143,7 +143,7 @@ function loadSourcemaps() {
             cb(null, f);
             return;
         }
-        f.contents = new Buffer(contents.replace(/\/\/# sourceMappingURL=(.*)$/g, ''), 'utf8');
+        f.contents = Buffer.from(contents.replace(/\/\/# sourceMappingURL=(.*)$/g, ''), 'utf8');
         fs.readFile(path.join(path.dirname(f.path), lastMatch[1]), 'utf8', function (err, contents) {
             if (err) {
                 return cb(err);
@@ -160,7 +160,7 @@ function stripSourceMappingURL() {
     var output = input
         .pipe(es.mapSync(function (f) {
         var contents = f.contents.toString('utf8');
-        f.contents = new Buffer(contents.replace(/\n\/\/# sourceMappingURL=(.*)$/gm, ''), 'utf8');
+        f.contents = Buffer.from(contents.replace(/\n\/\/# sourceMappingURL=(.*)$/gm, ''), 'utf8');
         return f;
     }));
     return es.duplex(input, output);
@@ -173,7 +173,6 @@ function rimraf(dir) {
             if (!err) {
                 return cb();
             }
-            ;
             if (err.code === 'ENOTEMPTY' && ++retries < 5) {
                 return setTimeout(function () { return retry(cb); }, 10);
             }