add support for running tests with `npm test`

closes #1

- run tests with `npm test`
- watch and test with `npm run-script watch-test`
- added .gitignore
first stab at scaffolding

ex:

`ember-generate -s person name:string age:number`

now, at the url `#/people`, there is a fully
functional crud interface persisting to
localStorage

needs tests, and smarter route insertion
updated README
added engines config to package.json

closes #3

not sure how far back I could go, but this is the
version I developed against
added versions to package.json
Ignore hidden files in precompile and build

closes #4
closes #6
update ember to rc1