Upgrade protobuf to 3.0.0b2 to fix unicode bugs

saltduck · saltduck · commit b590554c5877 · 2016-02-22T16:45:40.000+08:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,4 +1,4 @@
-protobuf==2.6.1
+protobuf==3.0.0b2
 Twisted==14.0.2
 txrudp==0.5.1
 pystun==0.1.0
