more work on dav test
updates to dav test
minor updates
ensuring clean output
Accommodating Shah's recommendations
Merging earlier changes in
Remove incorrect comment
set file size to 0 on O_TRUNC
Merge branch 'zero-length-trunc' of github.com:pantheon-systems/fusedav into remove-mount-from-test
find dav_server in one of two places
Put DavServer in test_dav.py to avoid issues with where to find it
remove dav_server.py from tests directory
Merge pull request #86 from pantheon-systems/remove-mount-from-test

Remove mount from test; reset file size on O_TRUNC