add paper.js
closes #588
Added GSAP 1.11.7 to libraries.js

Added Greensock Animation Platform version 1.11.7 to available libraries.
Merge pull request #1451 from agrothe/master

Added GSAP 1.11.7 to libraries.js
Libraries: upgrade Polymer 0.1.1 to 0.2.3
Merge pull request #1459 from addyosmani/polymer

Libraries: upgrade Polymer 0.1.1 to 0.2.3
Merge pull request #1420 from jsbin/588/add_paperjs

add paper.js
Use !== rather than > in condition

This is more aligned to the actual logic we're implementing
although there is no difference in flow.
Add pathIsSSL predicate
Use pathIsSSL for protocalCheck conditions
Set contentType to 'image/svg+xml' when format is 'svg'
set format to html for .svg requests

This is because we use the format variable to access the correct panel
of the bin, which means our check for html must now also check the mime
type
Test to move from "bins" to "file"

Conflicts:
	lib/features.js
IP based A/B testing
Use percentage of visitor for feature flagging

Conflicts:
	lib/features.js
Initial support for relative assets

Note that this should be upgraded to use memcached for looking up the assetUrl as it can quickly become expensive on the database for no good reason!
Merge pull request #1475 from jsbin/feature/user-image-aliases

Initial support for relative assets
add httproot to account pages context
use http root for /sethome
use req.bin.svg instead of format
add svg to route regex