Raspbian Jessie, First things first, Raspberry Pi

Update system:
sudo apt-get update -y && sudo apt-get upgrade -y
Set Up proper time zone:
sudo cp /usr/share/zoneinfo/Etc/GMT-2 /etc/localtime
Extend filesystem:
sudo raspi-config
Remove black borders from screen - Use native full hd resolution:
sudo sed -i "s/^.*disable_overscan=.*$/disable_overscan=1/" /boot/config.txt
Do not allow screen go blank:
sudo sed -i "s/^.*xserver-command=.*$/xserver-command=X -s 0 dpms/" /etc/lightdm/lightdm.conf
Install git command so it can be easy to work with github:
sudo apt-get install git -y
Install Firefox:
sudo apt-get install iceweasel -y
Colorize vim editor for user root and main user:
sudo su
apt-get install vim -y
echo 'syntax on' > ~/.vimrc
Force to use plain openbox instead of LXDE:
sudo sed -ri "s/exec \/usr\/bin\/lxsession -s LXDE-pi -e LXDE/exec \/usr\/bin\/openbox-session/" /usr/bin/x-session-manager
Configure to run application at openbox startup:
mkdir -p ~/.config/openbox/autostart
echo "#!/bin/sh" > ~/.config/openbox/autostart
vi ~/.config/openbox/autostart
chmod +x ~/.config/openbox/autostart
Configure to run application at LXDE startup:
vi /home/pi/.config/lxsession/LXDE-pi/autostart
Install pip for python2:
sudo apt-get install python-pip -y
Install pip3 for python3:
sudo apt-get install python3-pip -y
Install 7z support:
sudo apt-get install p7zip-full -y
Clone 2015-11-21-raspbian-jessie-lite card with another raspberry pi via usb port:
dd if=/dev/sda of=/home/pi/git-installed.img bs=1M count=1391
Connect to active session into the Raspbian:

Install Chromium on Raspberry Pi 2:

Chromium browser fresh start:

Shutdown Raspberry Pi through GPIO short circuit:

Set dynamic hostname for Raspbian image
Byat