Updates to Stellar Core

This week the core team was rocking and rolling, inching closer to the 0.12.0 finish line. First off, we had another release candidate, 0.12.0rc2. This release candidate comes with release notes (not present in the release candidate from last week). Since we are still more than a week out until the final release, or even the final release candidate for that matter, I will forgo a deep dive here for the time being.

Most of what was merged this week includes small nits, big fixes, and documentation/comment improvements. My personal favorite from this week was PR #2027 by graydon. This PR added a substantial comment about offers and the order book, especially helpful because, as someone who has done a little bit of work there, this code is tough. Furthermore, for those who are less familiar with the core codebase, gems like this are actually quite frequent, helping newcomers (and old comers alike) grok what exactly is going on!

Overall, eight pull requests were merged in the last week.