check for coordinates in mail processing

rowers/mailprocessing.py

@@ -210,6 +210,14 @@ def make_new_workout_from_email(rr,f2,name,cntr=0):
 	timestr = time.strftime("%Y%m%d-%H%M%S")
 	f2 = 'media/'+timestr+str(cntr)+'o.csv'
 
+    try:
+	avglat = rowdata.df[' latitude'].mean()
+	avglon = rowdata.df[' longitude'].mean()
+        if avglat != 0 and avglon != 0:
+            workouttype = 'water'
+    except KeyError:
+        pass
+
     row.write_csv(f2,gzip=True)
     dosummary = (fileformat != 'fit')