tests in progress, fixed utf characters conversion in toAscii

dist/ethereum.js

@@ -823,12 +823,12 @@ var web3 = {
         if (hex.substring(0, 2) === '0x')
             i = 2;
         for(; i < l; i+=2) {
-            var code = hex.charCodeAt(i);
+            var code = parseInt(hex.substr(i, 2), 16);
             if(code === 0) {
                 break;
             }
 
-            str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
+            str += String.fromCharCode(code);
         }
 
         return str;