bootcdregtest installs ReactOS into "c:\Windows", therefore the old detection method of checking the "Windows" directory no longer works.
A previous change tried to fix this by adding "|| IsReactOS()", but that resolves to CConfiguration::IsReactOS(), which simply returns m_IsReactOS.
Use ::IsReactOS() instead to get our versionhelper function.
- REVISION is now something like "0.4.7-dev-53-g1304b53" instead of "r12345".
- Change WINDOWS_NT_BANNER to better represent the ReactOS version and the reported NT version.
- Introduce REACTOS_COMMIT_HASH which contains the full 40-character commit hash (for comparing revisions, e.g. in rosautotest/testman).
Timo Kreuzer