Merge pull request niklasvh#130 from CyberShadow/opera-fixes

Opera performance fixes

Author: niklasvh

src/Parse.js

@@ -285,7 +285,7 @@ _html2canvas.Parse = function ( images, options ) {
 
             text_align = text_align.replace(["-webkit-auto"],["auto"]);
 
-            if (options.letterRendering === false && /^(left|right|justify|auto)$/.test(text_align) && /^(normal|none)$/.test(letter_spacing)){
+            if (options.letterRendering === false && /^(left|right|justify|auto)$/.test(text_align) && /^(normal|none|0px)$/.test(letter_spacing)){
                 // this.setContextVariable(ctx,"textAlign",text_align);
                 renderList = textNode.nodeValue.split(/(\b| )/);
 
@@ -363,7 +363,10 @@ _html2canvas.Parse = function ( images, options ) {
                         continue;
                     }
 
-                    newTextNode = oldTextNode.splitText(renderList[c].length);
+                    if (i < listLen-1)
+                        newTextNode = oldTextNode.splitText(renderList[c].length);
+                    else
+                        newTextNode = null;
 
                     parent = oldTextNode.parentNode;
                     wrapElement = doc.createElement('wrapper');