[IMP] account: Display full instead of cut bullets on dashboard graphs

Purpose
=======

http://nimb.ws/q12J40
Bullets are cut in the middle, improve so we can see the full bullet.

addons/account/static/src/less/account_journal_dashboard.less

@@ -43,6 +43,10 @@
     &.o_graph_linechart {
         > svg {
             height: 75px;
+            // Display cut bullets to full bullets
+            g.nvd3.nv-wrap.nv-line clipPath {
+                display: none;
+            }
 
             // X axis
             g.nv-x.nv-axis {

addons/web/static/src/js/fields/basic_fields.js

@@ -2096,7 +2096,7 @@ var JournalDashboardGraph = AbstractField.extend({
                     self.chart.forceY([0]);
                     self.chart.options({
                         x: function (d, u) { return u; },
-                        margin: {'left': 0, 'right': 0, 'top': 0, 'bottom': 0},
+                        margin: {'left': 0, 'right': 0, 'top': 5, 'bottom': 0},
                         showYAxis: false,
                         showLegend: false,
                     });