Adapt installation script to any machine (#258)

* Adapt script to any machine

Adapt script to any machine, independent of the user. We support for installations in VM Ubuntu

* Clear user-bootstrap.sh

* Update user-bootstrap.sh

* Adapt installation script to any machine

vm/root-bootstrap.sh

@@ -10,7 +10,7 @@ apt-get update
 
 KERNEL=$(uname -r)
 DEBIAN_FRONTEND=noninteractive apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" upgrade
-apt-get install -y --no-install-recommends \
+apt-get install -y --no-install-recommends --fix-missing\
   atom \
   autoconf \
   automake \
@@ -73,11 +73,11 @@ chmod 440 /etc/sudoers.d/99_p4
 usermod -aG vboxsf p4
 
 cd /usr/share/lubuntu/wallpapers/
-cp /home/vagrant/p4-logo.png .
+cp ~/p4-logo.png .
 rm lubuntu-default-wallpaper.png
 ln -s p4-logo.png lubuntu-default-wallpaper.png
-rm /home/vagrant/p4-logo.png
-cd /home/vagrant
+rm ~/p4-logo.png
+cd ~
 sed -i s@#background=@background=/usr/share/lubuntu/wallpapers/1604-lubuntu-default-wallpaper.png@ /etc/lightdm/lightdm-gtk-greeter.conf
 
 # Disable screensaver