Our MdYamlCodec runs inside an isolate, and send the result back. The
YamlMap data structure doesn't seem to be serializable over an isolate
and gives us an error. Therefore, we should make sure it is a normal
map.
A user requested that the YAML header be present at the bottom. I
thought this would be quite simple, but there are lots of edge cases
which will need to be solved.
Related to #223
This reverts commit 303192d9d575b26a77a00f7a62212f310ec1e329.
This reverts commit cd9d128b47ed523036f7ae1232ec7adcf04ed8a9.
GitJournal is used by non-English speakers (a lot in China and Russia)
and while we don't support those languages completely, we do support
them a little bit. I don't want to loose this functionality. It would be
better for us to fix the bug in intl.
