task-port_initial_gcc_engine

Added initial version of .gitignore file that will ignore intermediate and third party files
Made some minor changes so that the solution would work for VS2010 Express (Express editions don't seem to support C# and C++ projects in a solution at the same time - as we don't intend to use the editor yet, I removed it from the solution)
Swapped afxres.h for windows.h in .rc file for TeapotWars - afxres.h isn't available in Express edition