Ignore tmp/ and dist/
Fix bugs, add moment-shim and improve tests

- Register all helpers with Ember.Handlebars.helpers to fix a "undefined
  bug"
- Add ember-cli-moment-shim to avoid global moment
- Improve tests to work with Date, Moment and literal dates
- Create an index.hbs to show off all helpers
Improve readme
Merge pull request #3 from leandrocp/fix-helper-undefined

Fix bugs, add moment-shim and improve test