v1.12.12.2

-- Fixed bug introduced in last commit in ProcStreamEditGUI preventing adding of function to proc stream
-- Added Import User Function and Reload Registry menu options replacing the more complicated and less clear Add Function and Reload Function menu option in ProcStreamGUI. This should calsrify and make it more intuitive to add or make changes to user functions and update registry on the fly during a Homer3 session.
-- Chnaged help comments in user functions hmrG_SubjAvg and hmrS_RunAvg to have correct usage names. (Left the "Block" descrition in names).
-- Cleaned up and fixed some look and feel issues in MenuBox.