3.8.1 fix big number dependencies to all have the same range

Author: Calvin Metcalf

package.json

@@ -2,7 +2,7 @@
   "author": "Dominic Tarr <[email protected]> (dominictarr.com)",
   "name": "crypto-browserify",
   "description": "partial implementation of crypto for the browser",
-  "version": "3.8.0",
+  "version": "3.8.1",
   "homepage": "https://github.com/dominictarr/crypto-browserify",
   "repository": {
     "type": "git",
@@ -17,9 +17,9 @@
   },
   "dependencies": {
     "browserify-aes": "0.7.2",
-    "create-ecdh": "1.0.0",
-    "diffie-hellman": "2.2.0",
-    "browserify-sign": "2.7.0",
+    "create-ecdh": "1.0.1",
+    "diffie-hellman": "2.2.2",
+    "browserify-sign": "2.7.1",
     "pbkdf2-compat": "2.0.1",
     "public-encrypt": "1.1.0",
     "ripemd160": "0.2.0",