Credit investments going live:

Ability to Donate 1TByte of disk space to the community and get top download priority.
Critically depends on ticket: #5 and to lesser extend #21.
An undersupply detection mechanism seeks out swarms which are low on seeders.
The investment function download parts of these swarms and engages in partial seeding to earn credit. Seeding is done anonymously through proxies, critical dependency with #22.

Test idea: Tribler automatically fills 100MByte of disk, can be disabled on front-screen.

First test version is limited to few thousand Libswift test swarms which are included in Tribler and seeded. Desired outcome of the test is evenly spread out partial seeding. If we do artificial repeated downloads from 1 swarm, we boost demand and peers should see this as an attractive investment.