Most Unix systems prefer to omit the versions.
This fixes all current default warnings with GCC7 on Linux. That does not mean the code is anywhere close to clean.
'test' had been misspelled 'text', and the error had propagated to all seven games.
File locations can be customized via './configure'. 'make install' does not work yet. Options for wizard mode and load checks may not do what is intended. Fun fact: there's an enlightening epigraph in the introduction to the autoconf manual.
