Merge pull request #19 from ndawe/master

Fix plot-postfit error bands and blinding
Merge pull request #20 from ndawe/master

sideband workspaces
Merge pull request #21 from ndawe/master

major updates
Merge pull request #22 from ndawe/master

Updates...
Merge pull request #23 from ndawe/master

jackknife tree script rewrite
Merge pull request #24 from ndawe/master

updates...
Merge pull request #25 from ndawe/master

updates...
Add handling of several ntuple_path
Fix draw_ratio in compare.py and cutflow-bkg import
add MPI(off) comparison
small updates
fix merged_records call when no scores are specified
Improve score call fix
Change working dir in setup script
Ignore new simlink for ntuples
add a compare-tes script + use total tes error
Undo sample.py fix (conflict with WS creation)
New plot-pvalue script (under dev)
update compare-tes
port plot-postfit and statstools/plotting.py from confnote