Sort things
Render download templates on frontend

- Add grunt-contrib-handlebars to precompile Handlebars templates and place them
  on app/resources/template. This is accomplished by running `grunt handlebars`.
  Note: this task has also been included in the `grunt prepare` task. So, no
  additional step is required on deploy.
Update comments
There's no async processing in the task
Remove obsolete comment
Revert handlebars entry as a dependencies on package.json, and update it
Move "grunt-contrib-handlebars" into "dependencies", not "devDependencies"
Merge branch "handlebars" into master. Closes #101