Refactor samples.py. Add ttbar splitting.
Merge branch 'master' into newplots

Conflicts:
	newplots/plotfw/params.py
	newplots/samples.py
Add support for tracking used variables to cuts.
Refactor the cuts.
Unify quotation marks in params.py to `'`
Add the casts to float from ROOT.Double.
Fix jetEta cut refactoring mistake.
Fix 3J2T cut.
Add back the lost cuts.
Add weighting and enable branches in ttbarest.
Use logging for the file opening statement.
Merge branch 'master' into newplots
improved logging
switching cut branches on
Merge branch 'master' into newplots
use more cache
switch to time.time()
added n_cores as variable, chi2 drawer
flag for reweighting
set ncores on plot creator, fiddling with font sizes