Removed shadows in vertical and horizontal lines.

src/html/js/entries.js

@@ -414,13 +414,15 @@ drawChart = function(entries, element) {
               name: "zero",
               y: 0,
               lineWidth: 1,
-              color: "red"
+              color: "red",
+              shadow: false
             }},
             { dashedVerticalLine: {
               name: "today",
               x: new Date(),
               lineWidth: 1,
-              color: "gray"
+              color: "gray",
+              shadow: false
             }}]
         }
     });