fix(setup): use upstream traceur with explicit patches

Also correct the transpile to ES6

Also support generics correctly

All patches are hooked in via `/tools/transpiler/index.js`
https://github.com/google/traceur-compiler/issues/1700
https://github.com/google/traceur-compiler/issues/1699
https://github.com/google/traceur-compiler/issues/1708
https://github.com/google/traceur-compiler/issues/1625
https://github.com/google/traceur-compiler/issues/1706

modules/angular2/src/core/compiler/pipeline/directive_parser.js

@@ -30,6 +30,7 @@ import {ShadowDomStrategy} from '../shadow_dom_strategy';
 export class DirectiveParser extends CompileStep {
   _selectorMatcher:SelectorMatcher;
   constructor(directives:List<DirectiveMetadata>) {
+    super();
     this._selectorMatcher = new SelectorMatcher();
     for (var i=0; i<directives.length; i++) {
       var directiveMetadata = directives[i];

modules/angular2/src/core/compiler/pipeline/element_binder_builder.js

@@ -89,6 +89,7 @@ export class ElementBinderBuilder extends CompileStep {
   _parser:Parser;
   _compilationUnit:any;
   constructor(parser:Parser, compilationUnit:any) {
+    super();
     this._parser = parser;
     this._compilationUnit = compilationUnit;
   }

modules/angular2/src/core/compiler/pipeline/property_binding_parser.js

@@ -32,6 +32,7 @@ export class PropertyBindingParser extends CompileStep {
   _parser:Parser;
   _compilationUnit:any;
   constructor(parser:Parser, compilationUnit:any) {
+    super();
     this._parser = parser;
     this._compilationUnit = compilationUnit;
   }

modules/angular2/src/core/compiler/pipeline/proto_view_builder.js

@@ -25,6 +25,7 @@ export class ProtoViewBuilder extends CompileStep {
   changeDetection:ChangeDetection;
   _shadowDomStrategy:ShadowDomStrategy;
   constructor(changeDetection:ChangeDetection, shadowDomStrategy:ShadowDomStrategy) {
+    super();
     this._shadowDomStrategy = shadowDomStrategy;
     this.changeDetection = changeDetection;
   }

modules/angular2/src/core/compiler/pipeline/text_interpolation_parser.js

@@ -17,6 +17,7 @@ export class TextInterpolationParser extends CompileStep {
   _parser:Parser;
   _compilationUnit:any;
   constructor(parser:Parser, compilationUnit:any) {
+    super();
     this._parser = parser;
     this._compilationUnit = compilationUnit;
   }

modules/angular2/src/core/compiler/pipeline/view_splitter.js

@@ -36,6 +36,7 @@ export class ViewSplitter extends CompileStep {
   _parser:Parser;
   _compilationUnit:any;
   constructor(parser:Parser, compilationUnit:any) {
+    super();
     this._parser = parser;
     this._compilationUnit = compilationUnit;
   }