Back to normalization

My appologies :(
Re-structured methods, v.1
Merge branch 'review1-gert' into review1-osc
some more improvements
Updated ants pipeline for #9

The settings suggested by the reviewer are now implemented.
I upload a new version of the full-workflow as well
Format changes to suplemental material
Added FTD reference
reformulate the instrumentation bias part
Merge branch 'review1-osc' into review1-gert
change instrumentation bias part