adding *_hww to em unc files
adding *_hww to em unc files
added possibility to scale *_hww samples as well by corresponding preoduction cross section
added proper treatment of *_hww samples in em case. ATTENTION: I also changed the option --do-not-scales to --ignore-during-scaling 0:-)...
Merge pull request #38 from roger-wolf/master

Adding *_hww to em channel