Bump version to 0.2-6

Change-Id: I848e3821a74f1dda9163772f476f0d92f5a6c5c3

version.bzl

diff --git a/version.bzl b/version.bzl
index c0cd299..5fe4003 100644
--- a/version.bzl
+++ b/version.bzl
@@ -4,4 +4,4 @@
 # we currently have no stable releases, we use the "build number" scheme
 # described at:
 # http://mojo.codehaus.org/versions-maven-plugin/version-rules.html
-GITILES_VERSION = "0.2-5"
+GITILES_VERSION = "0.2-6"