refactor according to @ritch's notes

Signed-off-by: Clark Wang <clark.wangs@gmail.com>
README: add basic mocha setup instructions

Update README with instructions on how to configure `npm test`
to run unit tests using mocha.
Merge pull request #35 from pulkitsinghal/master

Updated based on concerns raised in issue #34
v1.0.4
Merge branch 'release/1.0.4' into production
Merge tag 'v1.0.4'

1.0.4

 * README: add basic mocha setup instructions (pulkitsinghal)
Merge remote-tracking branch 'upstream/master' into fix/built-in-models-not-found

Conflicts:
	lib/helpers.js
	package.json
use a simple approach

Signed-off-by: Clark Wang <clark.wangs@gmail.com>
Merge branch 'fix/built-in-models-not-found'

Conflicts:
	lib/helpers.js
	package.json
remove unused dep

Signed-off-by: Clark Wang <clark.wangs@gmail.com>
Merge branch 'fix/built-in-models-not-found'