• Bump version number and dependencies to stay in sync with other Mirage/Solo5
  components.

• Update Travis Matrix, bump to Ubuntu Xenial, only test with last three
  compiler versions.

• Port to dune (#13, @pascutto)

v0.3.0 (2018-06-17)

• Adapt to Solo5 v0.3.0 APIs.

v0.2.0 (2017-01-17)

• Port to topkg (@hannesm, #6)

• Use common parse-argv library (@yomimono, #4)

v0.1.1 (2015-07-15)

• Initial release for Solo5, derived from mirage-bootvar-xen.

• Only implements the Bootvar.argv interface as nothing else is required by
  current Mirage.