adding an example for RooFit, next one to follow
renamning examples/roofit.py
adding advanced RooFit example
adding expert RooFit example (what we need)
'adding' the holy grail of RooFit
a few fixes
adding RooFitFit to tool/Fitting.py and a unit test for it
nicer format
adding RooFitFit tests to travis build (please write more tests!)
adding Paras' RooFit code
adding gaussian constraints to RooFitFit (and tests, of course)
adding constraints to example. Also some code for later (profile LL)
saving the result of the fit for later access (i.e. covariance matrix)
adding fitter option
Merge pull request #54 from kreczko/merging

RooFit examples