nullpath, consistent error from session, general refactor
Remove unused function file_exists_or_set_null
Merge branch 'master' of github.com:pantheon-systems/fusedav into Mar18lognullpath
Merge branch 'master' of github.com:pantheon-systems/fusedav into Mar19RemoveUnusedFunction
Merge branch 'master' of github.com:pantheon-systems/fusedav into Mar19RemoveUnusedFunction
Merge branch 'master' of github.com:pantheon-systems/fusedav into Mar18lognullpath
move session from open to fresh_fd
Merge pull request #34 from pantheon-systems/Mar22Session

move session from open to fresh_fd
Merge pull request #32 from pantheon-systems/Mar19RemoveUnusedFunction

Remove unused function file_exists_or_set_null
logging
Merge branch 'master' of github.com:pantheon-systems/fusedav into Mar18lognullpath
Merge pull request #30 from pantheon-systems/Mar18lognullpath

nullpath, consistent error from session, general refactor
Merge branch 'master' of github.com:pantheon-systems/fusedav into remove_sdata_filename