Merge pull request #403 from lgrammel/master

Fix LCOV coverage reporting for toHTML=false

Author: alex-seville

src/reporters/lcov_reporter.js

@@ -25,7 +25,7 @@
             div.innerText = str;
             body.appendChild(div);
         }else{
-            window._$blanket_LCOV = str;
+            window._$blanket_LCOV = (window._$blanket_LCOV || '') + str;
         }
     };
 
@@ -39,4 +39,4 @@
           appendHtml(filename,data,toHTML);
         }
     };
-})();
+})();