Generate thrift wrappers in the build process.
Clean up codegen refs in build.gradle.
Do not compile Haskell support.

Our bootstrapped thrift compiler does not need Haskell support. This change
removes some of the complexity needed to bootstrap the thrift compiler.
Adding generated files into jar
Remove socksipy dependency from http_signaler.

Remove socksipy dependency from http_signaler.
Fixes small issue in environment bootstrapping script.
Increments twitter.aurora artifact version numbers.
Add troubleshooting section to vagrant.md

Add a troubleshooting section to the vagrant documentation.
Remove test for require_contact_email