However, retain extra dependency to keep the lts-2 build intact

Author: hce

stack.yaml

@@ -7,7 +7,8 @@ resolver: nightly-2016-05-26
 packages:
 - '.'
 # Packages to be pulled from upstream that are not in the resolver (e.g., acme-missiles-0.3)
-extra-deps: []
+extra-deps:
+- wai-session-0.3.2
 
 # Override default flag values for local packages and extra-deps
 flags: {}