Bump the version to 1.0.12 (#17)

Author: mpatou

setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name="rockset-stacky",
-    version="1.0.11",
+    version="1.0.12",
     description="""
     stacky is a tool to manage stacks of PRs. This allows developers to easily 
     manage many smaller, more targeted PRs that depend on each other.