Ship mesa from jessie-backports
First of all, it seems to have code that fixes the problem for which we are currently shipping a custom mesa package => this would allow us to drop one custom package.
Second, this would likely improve hardware support of graphics cards.
Feature Branch: feature/11303-mesa-backport
Related issues
- Related to #11850 (closed)
- Has duplicate #11263 (closed)
Original created by @intrigeri on 11303 (Redmine)