Merge pull request #41 from jrhdoty/master

fix bug with preview and update some display logic
refactor to make get.answer more readable
add addtional local euler resources
use variables in test.js
Update README.md
Merge pull request #42 from aaromp/master

add resources and improve testing
update version
update README
Merge pull request #43 from aaromp/master

update README
Update README.md
fix typo in verify output