[O] getorg.sh script

[Jude DaShiell]

These days I use this when an org-mode update fails and I have to erase 
the whole org-mode directory tree and clone org-mode again.  
Cut here.

#!/bin/bash
#file getorg.sh - run git to update local org repository.
if [ -r ~/org-mode  ]; then
echo "updating emacs-org-mode"
cd org-mode
git pull
make all
sudo make install
sudo make install-info
exit 0
fi
echo "getting new clone of emacs-org-mode"
mkdir org-mode
cd ~/org-mode
git clone git://orgmode.org/org-mode.git
make all
sudo make install
sudo make install-info

cut here.
I learned some additional bash shell technique as a result of having 
written this script so am happy to have done it and gained the experience.