Merge pull request #56 from jjacob/master

Some modifications I made over Summer in the measurement scripts while looking into the fitting process.
Updating readme (fixed build status, recipe)
Manually set matplotlib version
Merge pull request #58 from senkin/master

Cleaning up a bit
Added Higgs related items:
 - Higgs templates
 - Higgs to unfolding
 - electron + muon files for Higgs
 - signal histograms
 - scale factors for systematics and validation script
 - switch to just ignore the above

Updating recipe:
  - bug fixes from rootpy
  - Removed matplotlib from submodules
  - Updated rootpy and vpython
  - added matplotlib to set up via pip install
  - Simplified gitignore
  - Moved unfold config dependency in tools/Unfold.py to constructor level
  - Added TopSVDUnfold
  - Added root_numpy to the setup

Unfolding, tests and formatting:
 - code formatting for Calculation, hist_utilities and plotting modules
 - added plot  function to compare measurements to theory
 - added tests for SVD unfolding
 - added plots for new physics
 - tau value unfolding updates
 - Added TopSVDUnfold

Updating tools:
 - setting default Hist creation to double precision
 - fixing off-by-one error for graph creation
 - Fixed decomposition of values and added unit tests for it
 - Added fix for overflow and unit tests for it
 - updated error calculation for fitting (yerravg instead of errors)

Other:
 - Added graph plotting example
 - fiddled around with examples (need to be simplified)
 - fixed typo in travis.yml
Merge pull request #64 from kreczko/merge_with_higgs_3

Higgs, bugs and nice plots
Fixed issue #60:
 - Added two new version of the result
   - all systematics but the ttbar theory
   - all systematics but the top-pT reweighting and hadronisation (MC@NLO)
 - Changed inputs for plotting to the above
- fixed z-order for data-mc comparison plots
- fixed variable name warning: bin -> bin_i ('bin' is a predefined python function)
Merge pull request #65 from kreczko/fixes_plotting_and_errors

Fixes plotting, errors and issue #60
Plotting bugfixes and examples
Updated rootpy graph bug example (now fixed)
Adding categories for control plots/cosmetics
Fixing the control region comparison plots.. still opaque
Updated the README file
Fixing the legend zorder, adding MC unc in QCD plots
Added a possibility to draw a vertical red line in control plots
Added muon and electron relIso plots
Merge pull request #66 from senkin/plotting_fixes

Plotting fixes
k-value determination and updates
 - added 'best k-value determination' script
 - updated paths for the determination and comparison scripts
 - updated rootpy (fix for transparency
 - updated TopSVD imports
Merge pull request #67 from kreczko/k_value_determination_merged

k-value determination and updates