Bug fixes

Bug fixes

• @mwlon Fixed a problem with how numbers in scientific notation were being parsed by the clarinet library #145. Thanks!

Changes

• Don't catch errors thrown in callbacks #87 (thanks @charlierudolph!)
• Handle empty keys #114 (thanks @tmkujala!)

Process Updates:

• Add contributing doc #91
• change grunt's node-build-run to node-build #94
• add index.js for npm link #95