Cleaned up syntax and code in unitsupport.py and gcal_units.ty
Cleaned up syntax and code in unitsupport.py and gcal_units.ty

mjabri/topographica,mjabri/topographica,ioam/topographica,Tasignotas/topographica_mirror,Tasignotas/topographica_mirror,ioam/topographica,ioam/topographica,Tasignotas/topographica_mirror,Tasignotas/topographica_mirror,ioam/topographica,mjabri/topographica,mjabri/topographica,ioam/topographica,Tasignotas/topographica_mirror,mjabri/topographica