Added Readme file for staging repo

README.md

+######################################
+# OpenFlipper Staging Repository
+######################################
+
+This repository contains Plugins and Objecttypes which are currently not in a 
+releasable state for the Free branch. They might need more cleanup and testing 
+or have other flaws.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+0. Using the Staging repository
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+1. Clone the Free branch to get OpenFlipper:
+  git clone http://www.openflipper.org:9000/OpenFlipper-Free/OpenFlipper-Free.git OpenFlipper-Staging
+  
+2. Enter the Directory and Clone the Staging repository into it:
+  git clone http://www.openflipper.org:9000/OpenFlipper-Free/OpenFlipper-Staging.git Package-Staging
+
+  Note: You need to name it Package-something to get it picked up by the build
+        System
+        
+3. Build as usual.
+