Merge pull request #13 from qbuat/master

add color to np names
Merge pull request #14 from qbuat/master

New Jackknife tree maker
plot-postfit: make both linear and logscale
plot-postfit unblinding updates
plot-postfit ratio pane
add compare-workspaces
compare shapes of isolated and default Ztt
statstools cleanup (runSig.C major changes) and new compare-workspaces script
plot-postfit fixes
shapes script update
support for multi-sided QCD model systematic
rm old merge option in fix-workspaces
decorrelate option in statstools/histfactory.py
rm redundant regex in statstools/plotting.py and use rename_np instead of decorrelate_
fix sig
more runSig.C clean up
updates
compare swapped BDTs
sanity check in plot-bdt
rm dead code in optimize-binning