Roles - fixed restdoc

- XmlBody tags were not rendered properly (there must be _single_ space delimiter)
- "<", ">" were not escaped
- use <hostname> instead of localhost
- use https protocol
- arguments need to start at the line beginning (no spaces at the beginning)
- added new title (displayed in the content)
- removed <password> option (passing password on commandline is not secure)
- added empty lines at the end of the file (without them the last line was lost)

  (well, it seems that restdoc has some bugs...)