Incoming messages with empty body and an inline attachment might not have
parts - depending on encoding used.

* Use "-" tag for emails with empty body/message

Change /api/task/* -> /api/tasks/*

Remove piping setting option - it's now part of ticket create service (which include XML & JSON)

Implement remote cron as api task (more to come)

Log ALL API errors along with API Key used

    * Don't require a content-type, so data:,this is content
      is perfectly allowable. Such content is assumed text/plain
    * Support the charset hint, so
      data:text/plain;charset=iso-8859-1,content here
      will be translated to UTF-8 if the php iconv() function exists.
      Otherwise, content is left intact and assumed by the database to by
      UTF-8 already