Colorize git output by default in VM

util/deb/install_tools.sh

@@ -5,3 +5,8 @@
 #Install tcpdump and tshark, cmd-line packet dump tools.  Also install gitk,
 #a graphical git history viewer. 
 sudo apt-get install -y tcpdump tshark gitk
+
+#Set git to colorize everything.
+git config --global color.diff auto
+git config --global color.status auto
+git config --global color.branch auto