Set the console font and keyboard layout.
The gettys depend on console_setup, hostname and utmp.
NetworkManager and ifupdown depend on hostname.
consoles: Plymouth: Added a method: print_(self, debug, msg)
consoles: Direct: Added a method: hide(self, keep=False)
consoles: Plymouth: Added a method: hide(self, keep=False)
Changed instructions for Travis CI to use the Makefile.
consoles: Plymouth: Added a method: show(self, bootup=False, shutdown=False)