Add control instructions
Make default data path suitable for release

You can now specify a different data path using the command line.
Fix compiler warning
Allow compiler flags to be partially overridden
Fix errors for Visual Studio build
Add Visual Studio project
Fix bug in comparison function
Fix problem with stationary shots
Add release README file
Simplify Visual Studio library specification
Write script to package Windows build
Use correct runtime DLL
Add both DLLs to release
Add release files to gitignore