GPL-3 -> Apache-2

I've not been an active maintainer for many years and there's no reason
to hold on to the GPL-3, given the general advancement of BSD- and
Apache-style licenses over the past decade.

This change only applies to the code I personally wrote. Other authors
retain the right to decide the license to their contributions, which
should be discoverable using `git blame`.
34 files changed
tree: da8640f2f4c16b174edbd97b296cc685bebca466
  1. Setup.hs
  2. benchmarks/
  3. dbus.cabal
  4. examples/
  5. lib/
  6. license.txt
  7. tests/