Annotate conflict check.
Add -b command-line option that allows override of code branch.
Introduce universal-ish download function (supports wget and curl).
Do not allow 'root' to be target (install) user.
Touch /var/lock/subsys/fahbackup-rc at startup and at installation
so fahbackup gets executed on shutdown (RedHat/Fedora).
Annotate the code a little bit.
Adjust leading whitespace in client download message.