Print default root password in the ip_info.sh script

Why make external documentation a requirement to log into the VM? It's a
disposable training machine, so it should just tell the user what its original
root password is.
Add a script to print console login info

As with the last commit, but likewise with the console login if we already
installed PE. This doesn't run the script, just makes it available.
Call the console login info script if we're building a learning puppet VM

This commit changes rc.local to a template, and adds a line to it if we
declare the bootstrap class with print_console_login => true. (Which we do
in node learn.localdomain.)
Update to PE 2.7.0

This commit is for the learning VM, not necessarily the training VM.
Add reminder to set compatibility for VMware VMs