(apache#5102) - specify md5 data encoding

The default encoding was switched to utf8 in nodejs/node#5522

Author: omsmith

src/deps/md5.js

@@ -2,8 +2,8 @@ import toPromise from './toPromise';
 import crypto from 'crypto';
 
 var res = toPromise(function (data, callback) {
-  var base64 = crypto.createHash('md5').update(data).digest('base64');
+  var base64 = crypto.createHash('md5').update(data, 'binary').digest('base64');
   callback(null, base64);
 });
 
-export default res;
+export default res;

src/mapreduce/md5.js

@@ -1,7 +1,7 @@
 import crypto from 'crypto';
 
 function MD5(string) {
-  return crypto.createHash('md5').update(string).digest('hex');
+  return crypto.createHash('md5').update(string, 'binary').digest('hex');
 }
 
-export default MD5;
+export default MD5;