down on the amount of data shuffled around and saves some rendering time
on the forum index as well.

used anywhere anyway.

I don't know why this was ever defined when python has a ternary operator
which doesn't require its arguments to be evaluated if the condition
evaluates to false, whereas this helper method does.

This reverts commit b820c345.

Related templates should probably also be deleted. I did this mainly
because it's confusing to have so many functions with similar names and
there's a lot of unused stuff from discussion v1.

Suppress underscore errors when not on the right page. Ideally page specific JS execution would take care of this.

It worked in Chrome because Chrome appears to magically infer some missing
arguments to methods. This is the second time this happened, should be more
careful about it in the future, because it causes confusion when features
work for some students but not others.

Feature/victor/proper 404s

don't break courseware if S3 is unreachable

Merge branch 'feature/tomg/new-discussions' of github.com:MITx/mitx into feature/tomg/new-discussions