Git commits, on push, will be signed by default (just like my git
configuration itself) but *not* every change is signed since that is a
hassle with the working copy technically also being an ever changing
git commit.
Additionally, added a private-commit option which will refuse to push
commits beginning with 'wip: ' to any remote, which is not super useful
for my current use cases but also a nice feature and fun to experiment
with for the future.
The default log invoked when hitting `j` is now composed of the working copy history as well as all
ancestors, recent commits to visible heads and the trunk.
`jl` shows the same view, only as oneline commits.
