docs(upgrade): update to final

[Foxandxss]

This is a big PR.

• Includes updated examples (there are 4) using NgModule.
• Update unit tests for final version.
• Update prose to add all the relevant information for NgModule.
• Update tooling to match latest releases.
• Missing images, no more 404 errors.

Missing:

• Update tooling to add a karma-shim for running e2e tests (chore: ability to add unit test boilerplate #2462)

Notes:

• The main AppModule (in the hybrid-2 example) is quite complicated, has a lot of docregions, but is still better than 8-10 copies of it. Works good, step by step.
• There is one test (IMPORTANT, THERE ARE TWO COPIES OF IT) that is a xit. I wasn't able to make it work.
• @wardbell revise the tests and change it your way if you want to, no prose change is needed regarding tests. For running the tests, you need to use the karma.conf.ng1.js file.
• There are two disabled e2e tests. They need protractor 4.