Started a demoscripts folder, refactored some helper scripts (#70)

* moving all recipes to dynamically find helper scripts
* started to a devops_azure script
* re-organizing some existing scripts
* updated Readme known issues

demos/chocolateyfest2018.ps1

@@ -0,0 +1,42 @@
+# Description: Boxstarter Script
+# Author: Microsoft
+# Common settings for web dev
+
+Disable-UAC
+
+# Get the base URI path from the ScriptToCall value
+$bstrappackage = "-bootstrapPackage"
+$helperUri = $Boxstarter['ScriptToCall']
+$strpos = $helperUri.IndexOf($bstrappackage)
+$helperUri = $helperUri.Substring($strpos + $bstrappackage.Length)
+$helperUri = $helperUri.TrimStart("'", " ")
+$helperUri = $helperUri.TrimEnd("'", " ")
+$helperUri = $helperUri.Substring(0, $helperUri.LastIndexOf("/"))
+$helperUri += "/scripts"
+write-host "helper script base URI is $helperUri"
+
+function executeScript {
+    Param ([string]$script)
+    write-host "executing $helperUri/$script ..."
+	iex ((new-object net.webclient).DownloadString("$helperUri/$script"))
+}
+
+#--- Setting up Windows ---
+executeScript "FileExplorerSettings.ps1";
+executeScript "SystemConfiguration.ps1";
+executeScript "CommonDevTools.ps1";
+executeScript "RemoveDefaultApps.ps1";
+executeScript "WSL.ps1";
+executeScript "VirtualizationTools.ps1";
+
+#--- Browsers ---
+choco install -y googlechrome
+choco install -y firefox
+
+# TODO: Expand on tools/configuration options here
+# Tools inside WSL
+# Azure CLI
+
+Enable-UAC
+Enable-MicrosoftUpdate
+Install-WindowsUpdate -acceptEula