Added proof of concept template of a test module

Some of the functions and objects mentioned there are called differently now,
I'm going to refactor things until it looks like that.
Basic snapshotting code

I will probably delete those bin/ scripts later, but now they are useful for
development.

It basically works, but isn't integrated with the tests yet.
use env var to set main config file
added docs and some timeouts
Load config file into a global constant

Simplifies things.
prepare disks between tests
tmp: get swift manager in test setup
increased sleep time after load
tmp: swift reset after load
mount disks
reverted most of previous changes
Sync before snapshot; re-use snapshots
small fix
tmp: using root dir instead of /var/tmp
get_servers method for swift manager

the constructor is deleting the backups...duh
minifix
turn off swift reset
renamed some functions, added docs
draft of the server manager
created server generator and get method