and fidgui
FIX coreg_gui / fiducially panel:  don't allow locking incomplete fiducials
AMD clean
AMD clean
manual
ENH coreg_gui:  Ask for MNE_ROOT and FS_HOME when not set
API:  expose more functions
ENH coreg_gui:  disable immediate interpretation of scale1 parameter upon typing

(This is not as simple for other parameters because they rely on the ArrayEditor)