Merge branch 'develop' of github.com:mermaid-js/mermaid into develop

src/diagrams/pie/pieRenderer.js

@@ -100,7 +100,7 @@ export const draw = (txt, id) => {
     // Use the centroid method to get the best coordinates.
     svg
       .selectAll('mySlices')
-      .data(dataReady)
+      .data(dataReady.filter(value => value.data.value !== 0))
       .enter()
       .append('text')
       .text(function(d) {

src/mermaidAPI.js

@@ -430,6 +430,9 @@ const render = function(id, _txt, cb, container) {
 
   svgCode = decodeEntities(svgCode);
 
+  // Fix for when the br tag is used
+  svgCode = svgCode.replace(/<br>/g, '<br/>');
+
   if (typeof cb !== 'undefined') {
     switch (graphType) {
       case 'flowchart':