Add extra stuff to npmignore

bin/ and promise-tests/ are currently in npm, sadly.
fix MutationObserver memory leak

http://code.google.com/p/chromium/issues/detail?id=160985
https://github.com/emberjs/ember.js/issues/1667
Merge pull request #40 from stefanpenner/master

ObserverMutation memory leak in Chrome 
Added License
Merge pull request #39 from wibblymat/all

Added an RSVP.all method, along with documentation and tests
Merge pull request #37 from domenic/patch-2

Add extra stuff to npmignore
Fix node distribution
Bump version
Fixes issue when passing [] to RSVP.all()
Improve exports and configuration

Fixes #31
Update package.json and component.json
Add even more stuff to .npmignore

How do you guys even come up with all this stuff I have no idea whaaaaa.
Clean up browser build
Install browserify
Merge pull request #41 from domenic/patch-1

Add even more stuff to .npmignore