- Changed default value for expire of ftp user, should have fixed: #3862

- Added: First version of client api access with client user credentials
- Changed: 
  - merged remoting_lib and tform into one new base file where appropriate
  - moved some methods into helper methods
  only those methods remain in remoting_lib or tform that are completely
  different in these files or are only used in one of them
- Changed: added check of _GET array in json api handler

  http://yourispconfig:8080/remote/json.php?sites_web_domain_get
  with POST data:
  session=12345678901234567890123456789012&data=%7B%22type%22%3A%22vhost%22%2C%22active%22%3A%22y%22%2C%22php%22%3A%22fast-cgi%22%2C%22fastcgi_php_version%22%3A%22%22%2C%22%23LIMIT%23%22%3A1%7D
  where data is an urlencoded json-object of the params array used in SOAP api.