Add background app configuration example.
Add bits of example bundle documentation.

* Cleanup foo1_0 hello example.
Organize imports in foo1_0/hello.hs and remove unused extension.

* Disable postgres plugin in foo1_0 example.
Use cabal exec to build incoming examples.

* Don't hardcode sandbox architecture.
Clarify results of example build.
Fix websockets example build.
Run stylish-haskell on websockets chat example.
Add gitignore and cleanup options for websockets example bundle.
Explicitly import functions and types from System.Process.

This fixes a (Travis) build error associated with the `createPipe`
function.
Merge pull request #68 from creichert/master

Add `background` stanza example and various cleanup tasks.