Merge pull request #32 from jjacob/master

Updated merge scripts to merge unfolding ntuples and generator systematics histogram files for VJets sample.
fixed error calculation for toy MC
tidied up pull calculation, reusing functionality
increased font size for labels and title
changed from rootpy.Graph to TGraphAsymmetricErrors due to a bug in Graph
moved create toy mc to unfolding folder
fixed a few bugs in toy MC and unfolding pull creation, split pull and plotting + clean up
added 1 pb-1 to total lumi to avoid annoying rounding problem
added a few plots
fixed a few things in fit results, synchronised layout with control plots
added example for rootpy.Graph bug
updated external packages (in the hope of bugfixes)
Merge branch 'unfolding_pull_fixes'

Conflicts:
	src/cross_section_measurement/make_control_plots_7TeV.py
Merge pull request #35 from kreczko/master

Düt und Dat
New latex labels
exctracting the V+Jets template from specific b-tag bin
New script producing latex tables
typo in comment
Updated .gitignore
Merge pull request #36 from senkin/VJets_0btag

x-section measurement updates