binerrorsofemptybins.py: added analysis module for treatment of errors of empty bins
scalebincontentsbywidth.py: added analysis module for scaling by contents by bin widths
scalebincontentsbywidth.py: small fix
roottools.py: fix for non-equidistant binnings
inputbase.py: fixed expansion of folders
exportroot.py: implemented export module for root objects
Merge branch 'master' into histo_function_unification
adjustment to new name