- Adding Update command

- Current status very basic.
- Only supports so basic commands. But enough to keep Cartero updated.
Update command fix

-Adding git reset —hard HEAD before pull to ensure changes do not
bother us. This might not seam the greatest idea, but it does ensure
constancy and avoids issues.
Adding setup.sh

- Adding installation script on /data/scripts. This will serve as our
automated installed. Gotta give credit to @DarkOperator MSF-Installer
functions that made this a quick and dirty job.
Merge pull request #20 from FreedomCoder/master

Adding Installation script and Update Command