* Added a 'lineNumber' parameter to the 'padUpdate' structure.
* Added a 'FIELD_LINE_NUMBER' data value to PyPAD.
* Defined the '%z' metadata wildcard to refer to log line number.
* Added a 'lineId' parameter to the 'padUpdate' structure.
* Added 'FIELD_LINE_ID' data value to PyPAD.
* Defined the '%x' metadata wildcard to refer to log line ID.
* Renamed the RD_RLM2_CLIENT_TCP_PORT define to RD_PAD_CLIENT_TCP_PORT.
* Renamed the RD_RLM_SOURCE_UNIX_ADDRESS define to
RD_PAD_SOURCE_UNIX_ADDRESS.
* Added a RD_PYPAD_SCRIPT_DIR define.
* Added an 'RDNotification::PypadType' value to the
'RDNotification::Type' enumeration.
* Added 'PypadOwner=' and 'PypadGroup=' directives to the
'[Identity]' section of rd.conf(5).
* Added an rdpadengined(8) service.
* Added a 'PYPAD_INSTANCES.IS_RUNNING' field to the database.
* Added a 'PYPAD_INSTANCES.EXIT_CODE' field to the database.
* Added a 'PYPAD_INSTANCES.ERROR_TEXT' field to the database.
* Incremented the database version to 304.