Allow user to override USERAPPS path
This MR patches the two medm_l{hl}o scripts to preserve an existing setting for USERAPPS, meaning that relative ADL paths will resolve to a local copy of the screen, if present.
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This MR patches the two medm_l{hl}o scripts to preserve an existing setting for USERAPPS, meaning that relative ADL paths will resolve to a local copy of the screen, if present.