fix(views): remove dynamic component views, free host views, free embedded views

Closes #2472
Closes #2339

BREAKING CHANGE
- `Compiler.compile` has been removed, the only way to compile
  components dynamically is via `Compiler.compileInHost`
- `DynamicComponentLoader.loadIntoExistingLocation` has changed:
  * renamed into `loadIntoLocation`
  * will always create the host element as well
  * requires an element with a variable inside of the host component view
    next to which it will load new component.
- `DynamicComponentLoader.loadNextToExistingLocation` was renamed into
  `DynamicComponentLoader.loadNextToLocation`
- `DynamicComponentLoader.loadIntoNewLocation` is removed
  * use `DynamicComponentLoader.loadNextToLocation` instead
    and then move the view nodes
    manually around via `DomRenderer.getRootNodes()`
- `AppViewManager.{create,destroy}Free{Host,Embedded}View` was removed
  * use `AppViewManager.createViewInContainer` and then move the view nodes
    manually around via `DomRenderer.getRootNodes()`
- `Renderer.detachFreeView` was removed. Use `DomRenderer.getRootNodes()`
  to get the root nodes of a view and detach them manually.

modules/angular2_material/src/components/dialog/dialog.ts

@@ -59,7 +59,7 @@ export class MdDialog {
     var backdropRefPromise = this._openBackdrop(elementRef, contentInjector);
 
     // First, load the MdDialogContainer, into which the given component will be loaded.
-    return this.componentLoader.loadIntoNewLocation(MdDialogContainer, elementRef)
+    return this.componentLoader.loadNextToLocation(MdDialogContainer, elementRef)
         .then(containerRef => {
           // TODO(tbosch): clean this up when we have custom renderers
           // (https://github.com/angular/angular/issues/1807)
@@ -86,8 +86,8 @@ export class MdDialog {
           dialogRef.containerRef = containerRef;
 
           // Now load the given component into the MdDialogContainer.
-          return this.componentLoader.loadNextToExistingLocation(
-                                         type, containerRef.instance.contentRef, contentInjector)
+          return this.componentLoader.loadNextToLocation(type, containerRef.instance.contentRef,
+                                                         contentInjector)
               .then(contentRef => {
 
                 // Wrap both component refs for the container and the content so that we can return
@@ -107,7 +107,7 @@ export class MdDialog {
 
   /** Loads the dialog backdrop (transparent overlay over the rest of the page). */
   _openBackdrop(elementRef: ElementRef, injector: Injector): Promise<ComponentRef> {
-    return this.componentLoader.loadIntoNewLocation(MdBackdrop, elementRef, injector)
+    return this.componentLoader.loadNextToLocation(MdBackdrop, elementRef, injector)
         .then((componentRef) => {
           // TODO(tbosch): clean this up when we have custom renderers
           // (https://github.com/angular/angular/issues/1807)