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latest AH2550A driver
Merge branch 'michel' into Lilly

Conflicts:
	drivers/AH2550A.py
Merge branch 'michel' into Lilly

Conflicts:
	drivers/AH2550A.py
Merge branch 'Lilly' of https://github.com/gervaislab/g2python into Lilly
Merge branch 'Lilly' into michel