Checking in work in progress changes on Compare Wave Sets to continue working from home.
Merge branch 'master' of https://github.com/apfejes/epigenetics-software

Conflicts:
	Epigenetics/Illustration/Histogram.py
Merge branch 'master' of https://github.com/apfejes/epigenetics-software
Avoid int division in Histogram
Merge branch 'master' of https://github.com/apfejes/epigenetics-software

Conflicts:
	Epigenetics/Illustration/Histogram.py
Histogram now generates a proper histogram - marks on axes are missing.
Compare Wave Sets: move import of PrintThread to enable running on
command line.