Change test name
Merge branch 'devel' of github.com:Devristo/tribler into devel
Dont pass metadata dir in START command for libswift since the testing4devel branch doesnt handle it well.
Make desired circuit length generation based on strategies, such that it can be easily swapped out for others later. More specifically via the cli for the experiment

The same is done for circuit selection, this way the behaviour can be easiliy altered.

Changed the online / offline behaviour of the tunnel slightly, it is now checked at regular intervals instead of in some events