Reorganise files and remove submodule in order to move to releasing

binaries via the GitHub releases mechanism (see
https://github.com/raspberrypi/noobs/releases).

Author: Rob-Bishop

.gitignore

@@ -1,3 +1,4 @@
 buildroot/output/
 buildroot/dl/
+output/
 *.qm

.gitmodules

@@ -28,7 +28,11 @@ done
 # Let buildroot build everything
 make
 
-# Copy recovery kernel and rootfs to output dir
+# Create output dir and copy files
+mkdir -p ../output
+cp ../sdcontent/riscos-boot.bin ../output
+cp -r ../sdcontent/slides ../output
+cp -r ../sdcontent/images ../output
 cp output/images/zImage ../output/recovery.img
 cp output/images/rootfs.cpio.lzo ../output/recovery.rfs