Remove all references to the old Component interface

[dchambers]

Apart from a single backwards compatibility test, there should be no reference to the old Component interface, or reliance on any of its methods, like getElement().

As a starter, the following areas will need to change:

• The Getting Started guide and TODO MVC branch will need to be updated so they use a SimpleFrame and trigger the attach event, instead of only using the deprecated getElement() method.
• The dashboard should be updated so that it no longer uses the old Component interface (started in Initialize knockout plug-ins after template added to page #1379).
• The Workbench.displayComponent() method should trigger attach (already done as part of Initialize knockout plug-ins after template added to page #1379).
• Any library code that relies on the old Component should be updated too.

This comment may contain more relevant information.

[ioanalianabalas]

• updates to the Getting Started guide: Removed old Component references from the Getting Started guide. brjs-site#108
• updates to the brjs-todomvc-knockout have been pushed to the project's master branch
• updates to the dashboard: Removed references to the old Component interface from the Dashboard … #1390
• Workbench.displayComponent(): DONE previously
• updates to the library code: Removed references to the old Component interface from the Dashboard … #1390

[andy-berry-dev]

#1390 looks good so I've moved that into Test. I'd like to discuss BladeRunnerJS/brjs-site#108 though. IMO that makes the getting started guide much more complex so we should either simplify the interfaces use or not use it at all in the getting started guide (see my comment on the brjs-site PR - BladeRunnerJS/brjs-site#108 (comment)).

[andy-berry-dev]

@dchambers changes have been made in the existing PR (BladeRunnerJS/brjs-site#108).

[thanhc]

#1390 is causing workbenches to not load, see PR for more detials