Added stand-alone instructions for older boost versions and added ROOT files to gitignore
Fixes for issue #92:
 - replaced pfRelativeIsolation(0.3) with pfRelativeIsolationRhoCorrected()
 - removed pfRelativeIsolation histograms from ElectronAnalyser
 - removed obsolete comments
TTbar+X analyser:
 - removed obsolete comments
 - uncommented PFRelIso lepton analysers
 - removed non used variables
 - fixed latest problems with Ttbar+X analyser
 - synchronised GJets_HT-200ToInf naming
Merge pull request #94 from kreczko/fixing_non_iso

Fixes for issue #92
- fixed missing initialisations in constructor
- added event variables M3, M_bl and angle(b,l) to Event class
 - added multi-fit-variable for Binned_variable_analyser including correlations
 - added "automatic" histogram creation for /Binned_variable_analyser
Replaced 1-fit variable analysers with multi-(fit-)variable analysers
updated number of processed events for TTJets
updated formatting for MCParticle class
added 'verbose' option
tidied up:
 - Analysis binary
 - TTbar + X analyser
 - test configuration
increased limit for ST variable from 2 to 3 TeV
added TopPairMCEvent to encapsulate the particle finding
updated BinningAnalyser
 - use TopPairMCEvent
 - better binning
 - reduced code from 925 to 168 lines
Merge pull request #95 from kreczko/multi_variable_binning

Multi variable binning
Adding ID, Iso and Trigger scale factors: updated for 8TeV muons,
added for 8TeV electrons, 7TeV electrons & muons, added
systematic setting.
Making suggested corrections to getEfficiencyCorrections method in Electron.cpp and Muon.cpp.
Merge pull request #97 from jjacob/master

Adding ID, Iso and Trigger scale factors: updated for 8TeV muons,