fix build of flex by using correct ubuntu

diff --git a/Dockerfile b/Dockerfile
index 859563c..1cc664b 100644 (file)
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:15.04
+FROM ubuntu:15.10

 MAINTAINER Alex Cornejo <acornejo@gmail.com>
 
 # to prevent dialog warnings
 MAINTAINER Alex Cornejo <acornejo@gmail.com>
 
 # to prevent dialog warnings