feat(sublime packages): install package control

- With refactored package control script, always
    call to double-check package control exists

EthanBrown.SublimeText2.EditorPackages/tools/chocolateyInstall.ps1

@@ -27,6 +27,7 @@ try {
       Copy-Item @params
     }
 
+  Install-SublimePackageControl
   $packageControl = Join-Path $current 'Package Control.sublime-settings'
   Merge-PackageControlSettings -FilePath $packageControl