Fixes #110, css fix for fullscreen and edit mode, when fullscreen and edit panel…

Fixes #110, css fix for fullscreen and edit mode, when fullscreen and edit panel overflows the fullscreen height the panel is now scrollable. Also css fix for segment dropdowns for a graph with many many target rows.

src/css/less/grafana.less

@@ -114,11 +114,18 @@
   left: 0px;
   right: 0px;
   top: 54px;
-  bottom: 0px;
+  height: 100%;
   padding: 0 10px;
   background: @kibanaPanelBackground;
+  overflow-y: scroll;
+  height: 100%;
+
+  .panel-content {
+    padding-bottom: 130px;
+  }
 }
 
+
 .dashboard-fullscreen .container-fluid.main {
   height: 0px;
   width: 0px;
@@ -246,6 +253,11 @@
   }
 }
 
+// fix for fixed positioned panel & scrolling
+.grafana-segment-dropdown-menu {
+  margin-bottom: 70px;
+}
+
 .grafana-target-segment {
   padding: 5px 7px;
   display: inline-block;