fix: dof in mega ffx (as in FSL)
config for FFX/RFX choice
fix: mega ffx ols is mfx (re-naming)
Replace cfg by config in filenames

Otherwise each function appears as a separate menu item under SPM ->
Tools in the bartch.
Rename MFX-OLS into RFX
fix:typo
Rename MFX-OLS into RFX
Rename stouffer
Config definition for contrast variance input