Merge pull request chocolatey#445 from mwallner/chocolateyGH-444

(chocolateyGH-444) Refactor code around Boxstarter specific parameters to make it clearer

Merge pull request chocolatey#445 from mwallner/chocolateyGH-444

(chocolateyGH-444) Refactor code around Boxstarter specific parameters to make it clearer

(build) Fix release notes

(build) Fix release notes

(doc) Powershell -> PowerShell

fix chocolatey#278 not invoking method on nonexistent env variable data

Signed-off-by: Matt Wrock <[email protected]>

update release notes

Signed-off-by: Matt Wrock <[email protected]>

update release notes

Signed-off-by: Matt Wrock <[email protected]>

remove alphafs reference

Update vendored chocolatey to stable 0.10.7