Merge pull request #10 from alxnek/master

hey I have some goodies in my master
Merge pull request #11 from alxnek/master

Domain done fuck yea
Doing a bit of house cleaning, nothing major, doesn't change functionality
Merge branch 'master' of https://github.com/alxnek/CSharp_CarDealer into alxnek-master

Conflicts:
	ConsoleApplication1/Program.cs
Fixing 5 param errors for the test program.
Adding new input boxes and logic for GUI.
Forgot to  add .cs file logic for GUI.
Adding lots of input box logic.
Major overhaul of the GUI code with full error checking and much easier code to maintain.
Merge pull request #17 from motherdear/master

Major overhaul of gui code