Merge pull request #374 from dsame/master

Add lerna to windows images

images/win/scripts/Installers/Install-NodeLts.ps1

@@ -31,3 +31,4 @@ npm install -g gulp-cli
 npm install -g parcel-bundler
 npm install -g --save-dev webpack webpack-cli
 npm install -g yarn
+npm install -g lerna

images/win/scripts/Installers/Validate-NodeLts.ps1

@@ -26,6 +26,16 @@ else
     exit 1
 }
 
+if(Get-Command -Name 'lerna')
+{
+    Write-Host "lerna $(lerna --version) on path"
+}
+else
+{
+    Write-Host "lerna is not on path"
+    exit 1
+}
+
 
 
 if( $(node --version) -match  'v(?<version>.*)' )