Enforce numerical order i.s.o. alfabetical order of chromosomes for placement of chromosome boundary markers
Merge pull request #106 from thehyve/issue/chromosal-region-order-in-acgh-frequency-plot

Enforce numerical order i.s.o. alfabetical order of chromosomes for plac...
Merge pull request #19 from thehyve/london_hackaton

Fix wrong distribution chromosomes Frequency plot for aCGH