move the jpegtran install to extra -- don't expect many to be using that

setup/install-packages

@@ -4,10 +4,5 @@
 # libjpeg is required to compile imgcomp and the browsing program.
 sudo apt-get install -y libjpeg-dev
 
-# This gets the 'jpegtran' command, useful for losslessly making
-# the images 5% smaller as we go
-sudo apt-get install -y libjpeg-progs
-
-
 # Apache is required for the web based browsing program
 sudo apt-get install -y apache2

setup/install-packages-extra

@@ -2,6 +2,7 @@
 # These are not required.
 sudo apt-get install -y vim
 sudo apt-get install -y jhead
+sudo apt-get install -y libjpeg-progs
 sudo apt-get install -y fbi
 sudo apt-get install -y jp2a
 sudo apt-get install -y apcalc