Temporarily direct folks at darkswarm.org when downloading Kraken [repo maintenance].
Kraken: allow using tarball with any name.
Switch back to Kraken's github repo. Use current $BRANCH, too.
fahinstall 1.1
Auto-upgrade 1/6: remove "forced installation" logic
Auto-upgrade 2/6: do not mount the filesystem after configuring fstab, change verbiage to reflect actions taken
Auto-upgrade 3/6: introduce core auto-upgrade algorithm.

We're handling three top-level scenarios:
1. FAH installation present on regular filesystem -- perform migration
2. FAH installation present on tmpfs -- do nothing
3. FAH installation not present (no fah dir or fah dir empty) -- perform regular installation
Auto-upgrade 4/6: create target directory, download fahcores and configure the client only when performing new installation
Auto-upgrade 5/6: make sure to mount target directory after creating it
Auto-upgrade 6/6: attempt to unwrap cores before wrapping