Removed Chai asserts from src, added jsFiddle demo

Removed the inline Chai asserts from source files, since
they weren't really helping and introduced a dependency on
Chai for using the source.
Also testing out the jsFiddle/Github integration.
Change name of jsFiddle demo directory to "demo"

Apparently this is necessary...?
Re-renamed jsFiddle demo folder.

Added some files to try to get external resources to work.
Removed jsFiddle demo folder

It wasn't working as expected. Taking a simpler route for the demo.
Merge pull request #108 from palantir/dev

Removed Chai