Install script, operating system names, and string length fixes

Better way to install (don't dump straight into /bin , maybe install script?)
* I created install.sh that can install to /bin/ or /usr/local/bin

Truncate long hostnames that are > 35 characters long.
* My hostname (for some reason) is 40 characters long which runs over to the next line on a standard 80 length window.

Display name of Operating System next to Version. For example. "OS X 10.9 - Mavericks" (Bash 3 & Bash 4)
* OS X has Bash 3.2 by default, but I included a solution for Bash 4 (commented out).