Milestone M29 updates

Let's go through what we got done in Milestone M29 (Jan 27 - Feb 09).

• This milestone mostly went into Honeybadger bug fixes. Also, a minor bug in React codeblocks, related to preview failing when an onChange function is added in student code, was fixed.

• We did one final attempt to fix timeout-related Honeybadger issues on the SITE API. However, some of them were re-opened by Honeybadger later. This led us to believe that the issue is not on the app/query level, but something else. On debugging we found that Postgres memory is hogged up almost all the time. We increased the PG memory and have been observing it over the last few days. What we observe, will decide our course of action.