use yields/ago instead of component/moment

we only need a small subset of moment functionality
temporarily disable mocha tests

cannot test since yields/ago does not have npm module
need to figure out how to test it in the browser instead
switch to in-browser testing with component-test

- add component-test deps
- stop using should (not available as a component), use timoxley/assert
  instead
- load rederence data using getJson implemented with yields/xhr
re-enable travis testing
Merge branch 'remove-moment'
Release 1.0.0