This commit also updates the version of `@angular/cli` used for docs examples.
The previous (transient) dependency `@ngtools/webpack` was not compatible with
`@angular/compiler-cli@>=5` and was breaking when running against the local
builds (currently at 5.0.0-beta.2). The version of `@ngtools/webpack` used by
the latest `@angular/cli` version is compatible with `@angular/compiler-cli@5`.
Update to in-memory-web-api should handle id=0.
Make sure this works by having a hero with id=0 in ToH.
Coincidentally delete lingering dead app/ folders
Todo: fix ToH images (which have to do anyway)
Jesus Rodriguez
Ward Bell
George Kalpakas
Filipe Silva