Merge pull request #54 from ffrensch/master

right label for bbh-ggh plot and  	changing tanb_grid_new to default - kept option --old for old tanb_grid
adding the possibility to plot an injected signal = expected s+b, most times should be 1xSM125, together with expected and observed. Of course this does not influence the default, also it requires some manual work, but is doable, will explain it in PROGRAMM
Merge remote-tracking branch 'upstream/master'