Import chocolatey package templates from https://github.com/chocolatey/chocolatey/
Push the chocolatey package.
Test the package before pushing it.
Revert "Test the package before pushing it."

This reverts commit 845bb8a82bdc9c156585cac9cc11fb44cabae1e9.

It doesn't look like `cinst` can install from a local file?
Show the chocolatey stuff in VS.
Clean the install directory when installing a new version.

h/t @ferventcoder on git-tfs/git-tfs#341
Merge pull request #340 from git-tfs/chocolatey

Build chocolatey packages.