Adding pym.js

Downloaded from https://github.com/nprapps/pym.js/.
Adding quicksound.js
Create purl/package.json
Create purl.js
Create purl.min.js
[Author] Updated to v1.3.1

Updated to v1.3.1, with major changes since v1.2.4. More importantly,
desandro’s imagesLoaded plugin is no longer required. Multiple bug
fixes have also been implemented, with optimisation of code
organisation.
[Author] Updated to v1.3.1

Bug fixes and major code cleanup.
add yui v3.17.1
add autosize.js v1.18.8
add autosize.js' license info
update autosize.js' homepage
add autosize.js' keyword
Merge pull request #3229 from drewfreyling/master

Manually added beta 7 because npm update got confused.
Updating RxJS to 2.2.24
Merge pull request #3230 from Reactive-Extensions/rxjs

Updating RxJS to 2.2.24
Add joint.js 0.9.0 library
Adding Ember-auth
Fixing ember-auth name in package.json
Merge pull request #3228 from PeterDaveHello/autosize.js_v1.18.8

Autosize.js v1.18.8
Updated packages via auto-update.js