Fix origin of coordinate system for charts

Author: sebastianbergmann

PHP/CodeCoverage/Report/HTML/Renderer/Template/dashboard.html.dist

@@ -72,11 +72,13 @@ $(document).ready(function() {
    labels: {style: {fontSize: '8px'}},
    categories: [
     '0%','0-10%','10-20%','20-30%','30-40%','40-50%','50-60%','60-70%','70-80%','80-90%','90-100%','100%'
-   ]
+   ],
+   min: 0
   },
   yAxis: {
    title: '',
    labels: {style: {fontSize: '8px'}},
+   min: 0
   },
   series: [{
    data: {ccd_values}
@@ -94,10 +96,12 @@ $(document).ready(function() {
   xAxis: {
    title: {text: 'Code Coverage (in percent)'},
    labels: {enabled: true},
+   min: 0
   },
   yAxis: {
    title: {text: 'Cyclomatic Complexity'},
    labels: {enabled: true},
+   min: 0
   },
   tooltip: {
    formatter: function() {