history: Add notes for v1.0.10-pre

In the future let's write the release notes as we go, to save having to
do this when tagging the release.

Also, from this release onwards, let's keep the entires within each release
section in chronological order (instead of reverse-chronological, which is
gits's default, thus now adding --reverse).

Change-Id: I816eca9b73e521e33d0e7e31dc60c545ce15637f