Passed locally but fail on the builder, revert for now until I figured
out what's going on there.

This reverts commit 3d36ed8c.

- fix doc subpkg
- switch to lua 5.3 as 5.1 is no longer supported

prspkt authored Mar 15, 2018 and Sören Tempel committed Mar 19, 2018

Also clarify license while being here.

tun-1 is the disk if the iscsi target is tgtd

CVE-2018-7320, CVE-2018-7321, CVE-2018-7322, CVE-2018-7323,
CVE-2018-7324, CVE-2018-7325, CVE-2018-7326, CVE-2018-7327,
CVE-2018-7328, CVE-2018-7329, CVE-2018-7330, CVE-2018-7331,
CVE-2018-7332, CVE-2018-7333, CVE-2018-7334, CVE-2018-7335,
CVE-2018-7336, CVE-2018-7337, CVE-2018-7417, CVE-2018-7418,
CVE-2018-7419, CVE-2018-7420

Roberto Oliveira authored Mar 17, 2018 and Natanael Copa committed Mar 19, 2018

Disabled tests for now, seems they are passing
but in the end they failed with error:

t/15term-input.t        (Wstat: 9 Tests: 29 Failed: 0)
  Non-zero wait status: 9
  Parse errors: No plan found in TAP output

See bug: https://bugs.launchpad.net/libtickit/+bug/1756523