xmd Code

Add NOTE command, fix XMD's built-in doc line for WRITE TAG COR

fix read_cm(), was not reading first parameter when using original 'mc' command

Update doc about ITEMP and VELOCITY interaction

Fix GetMinMaxCoord, needed by plot command

In cditemp.c, CalcLinearVelocity, TotalMass was not initialized to zero

Corrected GetMinMaxCoord type, was using X instead of idir

Remove ERROR_FAC, instead use ASSERT to detect less than three cells per box

remove test printf statement from cdsubs.c

Update doc about WRITE MC_STATS

Correct WRITE TEMP to check for initialized temperature