0.007
  - Fix timeout callback being called in global destruction
    not working as expected.

0.006
  - Fix bug when trying to unlock and encountering a timeout.

0.005
  - Fix dependencies and put onto CPAN.

0.004
  - Fix timeout code to not die.

0.003
  - Ensure that timer is set using accurate time (by calling ->now_update)
    so that timer runs for the full interval, even if the event loop hasn't
    run for a long time.

0.002
  - Allow locks to time out.

0.001
  - Initial version