New "insteadOf" aliases for git
Autocommand for reloading Startify
Add TODO note, and disable some "noop" plugins
Added links to README
Updated plugin submodules (with a warning)

I think some plugin update makes some odd change that provokes an unwanted
behaviour with conceal. I have to review it through, but I need to push this
anyway to sync work computer (which I'm leaving right now) with my home one.
Added TODO.diff

Stuff I've been sitting on top for a while, without time to push upstream as a
proper fix.
Add note for self-reference