trying to get the NA to match the header
start branch 1_2 from my debug 1_1
1_2 start
Merge branch 'SAHM_1_2' of git@github.com:ColinTalbert/sahm.git into SAHM_1_2

Conflicts:
	init.py
	utils.py
changes to user guide and Pred surface for residual surface tiff
initial commit