////////////////////////////////////////////////////////////////////////////////
/// @startDocuBlock GetApiQueryCurrent
/// @brief returns a list of currently running AQL queries
///
/// @RESTHEADER{GET /_api/query/current, Returns the currently running AQL queries}
///
/// @RESTDESCRIPTION
/// Returns an array containing the AQL queries currently running in the selected
/// database. Each query is a JSON object with the following attributes:
///
/// - *id*: the query's id
///
/// - *query*: the query string (potentially truncated)
///
/// - *started*: the date and time when the query was started
///
/// - *runTime*: the query's run time up to the point the list of queries was
///   queried
///
/// @RESTRETURNCODES
///
/// @RESTRETURNCODE{200}
/// Is returned when the list of queries can be retrieved successfully.
///
/// @RESTRETURNCODE{400}
/// The server will respond with *HTTP 400* in case of a malformed request,
///
/// @endDocuBlock
////////////////////////////////////////////////////////////////////////////////