Testing tweak to try out Travis
Port to Cow 0.7.0 API (an xml:base header)
Travis: test all the variants (unix-direct, unix-socket, xen) across 4.00.1 and 4.01.0
travis: fix typo in shell script
remoev the 4.1+xen backend as that's known not to work yet
Merge pull request #33 from avsm/master

Testing tweak to try out Travis