docs(toh): update HTTP chapter with style guide conventions

closes #1477

public/docs/_examples/toh-6/ts/app/dashboard.component.ts

@@ -16,17 +16,17 @@ export class DashboardComponent implements OnInit {
   heroes: Hero[] = [];
 
   constructor(
-    private _router: Router,
-    private _heroService: HeroService) {
+    private router: Router,
+    private heroService: HeroService) {
   }
 
   ngOnInit() {
-    this._heroService.getHeroes()
+    this.heroService.getHeroes()
       .then(heroes => this.heroes = heroes.slice(1,5));
   }
 
   gotoDetail(hero: Hero) {
     let link = ['HeroDetail', { id: hero.id }];
-    this._router.navigate(link);
+    this.router.navigate(link);
   }
 }

public/docs/_examples/toh-6/ts/app/hero-detail.component.ts

@@ -1,10 +1,11 @@
 // #docplaster
 // #docregion
-import { Component, Input, Output, OnInit, EventEmitter } from '@angular/core';
+import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
 import { RouteParams } from '@angular/router-deprecated';
 
 import { Hero }        from './hero';
 import { HeroService } from './hero.service';
+
 @Component({
   selector: 'my-hero-detail',
   templateUrl: 'app/hero-detail.component.html',
@@ -17,16 +18,16 @@ export class HeroDetailComponent implements OnInit {
   navigated = false; // true if navigated here
 
   constructor(
-    private _heroService: HeroService,
-    private _routeParams: RouteParams) {
+    private heroService: HeroService,
+    private routeParams: RouteParams) {
   }
 
   // #docregion ngOnInit
   ngOnInit() {
-    if (this._routeParams.get('id') !== null) {
-      let id = +this._routeParams.get('id');
+    if (this.routeParams.get('id') !== null) {
+      let id = +this.routeParams.get('id');
       this.navigated = true;
-      this._heroService.getHero(id)
+      this.heroService.getHero(id)
           .then(hero => this.hero = hero);
     } else {
       this.navigated = false;
@@ -36,7 +37,7 @@ export class HeroDetailComponent implements OnInit {
   // #enddocregion ngOnInit
   // #docregion save
   save() {
-    this._heroService
+    this.heroService
         .save(this.hero)
         .then(hero => {
           this.hero = hero; // saved hero, w/ id if new

public/docs/_examples/toh-6/ts/app/hero.service.ts

@@ -1,7 +1,7 @@
 // #docplaster
 // #docregion
 import { Injectable }    from '@angular/core';
-import { Http, Headers } from '@angular/http';
+import { Headers, Http } from '@angular/http';
 
 // #docregion rxjs
 import 'rxjs/add/operator/toPromise';

public/docs/_examples/toh-6/ts/app/heroes.component.ts

@@ -21,11 +21,11 @@ export class HeroesComponent implements OnInit {
   error: any;
 
   constructor(
-    private _router: Router,
-    private _heroService: HeroService) { }
+    private router: Router,
+    private heroService: HeroService) { }
 
   getHeroes() {
-    this._heroService
+    this.heroService
         .getHeroes()
         .then(heroes => this.heroes = heroes)
         .catch(error => this.error = error); // TODO: Display error message
@@ -46,7 +46,7 @@ export class HeroesComponent implements OnInit {
   // #docregion delete
   delete(hero: Hero, event: any) {
     event.stopPropagation();
-    this._heroService
+    this.heroService
         .delete(hero)
         .then(res => {
           this.heroes = this.heroes.filter(h => h !== hero);
@@ -66,6 +66,6 @@ export class HeroesComponent implements OnInit {
   }
 
   gotoDetail() {
-    this._router.navigate(['HeroDetail', { id: this.selectedHero.id }]);
+    this.router.navigate(['HeroDetail', { id: this.selectedHero.id }]);
   }
 }

public/docs/ts/latest/tutorial/toh-pt6.jade

@@ -201,7 +201,7 @@ code-example(format="." language="bash").
 :marked
   ### Save
 
-  We combine the call to the private `_post` and `_put` methods in a single `save` method. This simplifies the public api and makes the integration with `HeroDetailComponent` easier. `HeroService` determines which method to call based on the state of the `hero` object. If the hero already has an id we know it's an edit. Otherwise we know it's an add.
+  We combine the call to the private `post` and `put` methods in a single `save` method. This simplifies the public api and makes the integration with `HeroDetailComponent` easier. `HeroService` determines which method to call based on the state of the `hero` object. If the hero already has an id we know it's an edit. Otherwise we know it's an add.
 
 +makeExample('toh-6/ts/app/hero.service.ts', 'save', 'app/hero.service.ts (save hero)')(format=".")