Merge pull request #87 from roger-wolf/master

Elevated uncertainty file manipulations to class
prevent the UncertAdaptor from uncommenting signal in 0jet when background is added :-)...
adding the old --stable option in addition to the new one as this just always lead to a useful result when not caught in infinity loops...
adding hww as BG, fixing hww as signal to a given mass and scaling of hww for hww as BG and as signal -- this adds three two options: --hww-mass and --hww-scale and one new analysis of type bbb:hww-bg, the part before the : can be replaced by any other template analysis, like no-bbb e.g.