Merge pull request #1011 from remy/feature/handlebars

Feature/handlebars
Archive flag was being set by default due to template change
Fixes #1009. Reverting introduction of strict.

We'll have to reintroduce and run a full lint check because it's blowing up Chrome et al.
3.8.13
damn strict
3.8.14
Fixing jsbin throwing exception when headers sent twice, then mail vomiting and causing Dave to explode :-\
3.8.15
Expose a repl to help diagnose insane spike count
Removing email notifications in travis
Fixed mail handler throwing and give a way to see errors
Merge pull request #1020 from remy/feature/test-errors

Fixed mail handler throwing and give a way to see errors
Merge pull request #1021 from remy/feature/repl

Expose a repl to help diagnose insane spike count
removed old code
3.8.16
Ensure jsbin runs from the root directory
3.8.17
Fixing a leaking pending object

If there was no session for the spike ping, then it would exit the timer, but the pending object would remain full (which contains large strings), consuming memory when we don't need to.
Support feature checks in templates

The template needs the user object (expected to be the session user), and usage is:

```html
{{#feature user "alpha"}}You are alpha user{{/feature}}
```