Iris Calliope

fixed bug in load_exp - if there were multiple frame galvo stops runnning crashes in one Exp, the correction failed.

more changes

help updates

added help.txt with a brief overview of how to use calliope.m

set_adata_code.m - remove line breaks from comments field
check_siteROIs.m - restricted adata load to relevant subfields

minor: doc and additional search string

zmarpawe ACX project patch in aux channel parser

chat injections coordinates

OII bugfixes and background image handling changed. Either take separate bkg image or mean of stack.