refactored so any command line option can be specified in a config file
renamed hooks to hooks_pxe
fixed white spaces, empty lines
check if arg is not empty
load iso configuration instead of empty dictionary
added extra variable for the initrd options
renamed hooks to hooks_pxe, added hooks_iso
made network interfaces more configurable in the iso_overlord overlay
example
simplified the puppet bootstrap example script, and switched to Puppet 3
and Hiera
added more variables to the default configuration
added more variables