added wrapper function divideTimedelta.

include/mtime_timedelta.h

@@ -58,6 +58,7 @@ struct _timedelta
 struct _divisionquotienttimespan
 {
   int64_t quotient;          ///< Quotient of two timedeltas.
+  int64_t remainder_days;    ///< Remainder in days of two timedeltas division.
   int64_t remainder_in_ms;   ///< Remainder in milli seconds of two timedeltas division.
 };
 
@@ -85,6 +86,10 @@ timeDeltaToJulianDelta(struct _timedelta *td, struct _datetime *dt, struct _juli
 struct _timedelta*
 julianDeltaToTimeDelta(struct _juliandelta* jd, struct _datetime *dt, struct _timedelta* td_return);
 
+struct _divisionquotienttimespan*
+divideTimeDelta(struct _timedelta* dividend, struct _timedelta* divisor,
+		struct _datetime* base_dt, struct _divisionquotienttimespan* quo_ret);
+
 struct _divisionquotienttimespan*
 divideTimeDeltaInSeconds(struct _timedelta* dividend, struct _timedelta* divisor, struct _datetime* base_dt, 
 struct _divisionquotienttimespan* quo_ret);