Gemfile.lock in riemann-babbler-2.0.0pre13 vs Gemfile.lock in riemann-babbler-2.0.0pre15

@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    riemann-babbler (2.0.0pre13)
+    riemann-babbler (2.0.0pre15)
       configatron
       docile
       file-tail
       net-http-server
       net-ping