the packages folder currently contains all the examples, the example packages don't contain any
loopback logic, therefore it makes sense to move the examples to a separate folder. All example
packages are thus moved from `packages/example-{name}` to `examples/{name}`.

 - @loopback/authentication@0.5.3
 - @loopback/boot@0.5.3
 - @loopback/build@0.4.2
 - @loopback/cli@0.6.3
 - @loopback/context@0.5.3
 - @loopback/core@0.4.3
 - @loopback/metadata@0.4.3
 - @loopback/openapi-spec-builder@0.4.3
 - @loopback/openapi-v3-types@0.3.3
 - @loopback/openapi-v3@0.5.3
 - @loopback/repository-json-schema@0.4.3
 - @loopback/repository@0.5.0
 - @loopback/rest@0.5.3
 - @loopback/testlab@0.5.3
 - @loopback/example-hello-world@0.4.3
 - @loopback/example-log-extension@0.5.3
 - @loopback/example-rpc-server@0.4.3
 - @loopback/example-todo@0.5.3
 - @loopback/docs@0.3.5

Modify Context, Binding, and related methods to allow developers
to add a type information to individual binding keys. These binding
keys will allow the compiler to verify that a correct value is passed
to binding setters (`.to()`, `.toClass()`, etc.) and automatically
infer the type of the value returned by `ctx.get()` and `ctx.getSync()`.

Bring the documentation in sync with the actual implementation in code.
Rename `AuthenticationProvider` to `AuthenticateActionProvider`

connected to #181

- move controllFactory param next to controllerCtor
- split createControllerFactory to three functions

Now the apidocs will be generated for the whole monorepo

 - @loopback/authentication@0.6.0
 - @loopback/boot@0.6.0
 - @loopback/build@0.4.3
 - @loopback/cli@0.7.0
 - @loopback/context@0.6.0
 - @loopback/core@0.5.0
 - @loopback/metadata@0.4.4
 - @loopback/openapi-spec-builder@0.4.4
 - @loopback/openapi-v3-types@0.3.4
 - @loopback/openapi-v3@0.5.4
 - @loopback/repository-json-schema@0.4.4
 - @loopback/repository@0.6.0
 - @loopback/rest@0.6.0
 - @loopback/testlab@0.5.4
 - @loopback/example-hello-world@0.4.4
 - @loopback/example-log-extension@0.6.0
 - @loopback/example-rpc-server@0.4.4
 - @loopback/example-todo@0.6.0
 - @loopback/docs@0.4.0