vagrantfile: add ability to boot into a gui

Signed-off-by: Silvio F <silvio.fricke@gmail.com>
bootstrap: move to a misc directory

Signed-off-by: Silvio F <silvio.fricke@gmail.com>
misc/readme: add file

Signed-off-by: Silvio F <silvio.fricke@gmail.com>
readme: change installation text a bit

Signed-off-by: Silvio F <silvio.fricke@gmail.com>