Remove some spammy logging

Signed-off-by: John Else <john.else@citrix.com>
Add initialise to mli

Signed-off-by: John Else <john.else@citrix.com>
Rewrite list_directory_unsafe recursively

Signed-off-by: John Else <john.else@citrix.com>
Remove trailing whitespace

Signed-off-by: John Else <john.else@citrix.com>
Merge pull request #2 from johnelse/tidying

General library tidyup
Release 0.5.3

Signed-off-by: John Else <john.else@citrix.com>