Clean up the docs a bit
Update to tutorial.ipynb
Merge pull request #44 from cdeil/docs

Clean up the docs a bit
Use minuit = Minuit() consistently
Use minuit = Minuit() consistently
Add comment about degenerate polynomial fit
fix typo
Clean up tutorial a bit

- no import *
- code formatting
Merge pull request #46 from cdeil/tutorial

Tutorial update
For BinnedLH, add an argument *weighterrors*. It is for binned dataset where you want to manipulate each bin's error.
Replace a baseline figure where the normalization has been updated.
pull from head
Merge branch 'master' of https://github.com/gitcheng/probfit
Fix ndof in chisq fit; allow blinding more than one parameter in BlindFunc