1. Windup should report the current home directory as well as the version. This would make it much clearer as to which installation is actually running
2. We should override WINDUP_HOME if it doesn't match the current installation. So if they run /path/to/windup2.3 but have a variable pointed to /path/to/windup2.2 we should print a warning and run anyway
3. We should still support WINDUP_HOME to allow using the windup startup script outside of the installation directory, for people who copy it elsewhere