autopep8 --ignore=E501 fixes for chapter 5

(E501 = line too long)
I dislike how autopep8 breaks long lines,
and the lines weren't usually too long here.
Minor updates from new tool
autopep8 --ignore=E501 fixes.

The code in this chapter was already fixed so the
improvement is debatable.
autopep8 --ignore=E501 fixes.

The code in this chapter was already fixed so the
improvement is debatable.
autopep8 --ignore=E501 fixes. Paying off!
autopep8 --ignore=E501 fixes. Paying off!
autopep8 --ignore=E501 fixes. Marginal improvement.
Merge branch 'master' of https://github.com/CamDavidsonPilon/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers

Conflicts:
	Chapter1_Introduction/Chapter1_Introduction.ipynb
Merge remote-tracking branch 'cam/master' into chap2-style

Conflicts:
	Chapter2_MorePyMC/MorePyMC.ipynb
Merge remote-tracking branch 'cam/master' into chap4-style

Conflicts:
	Chapter4_TheGreatestTheoremNeverTold/LawOfLargeNumbers.ipynb
Merge remote-tracking branch 'cam/master' into chap5-style

Conflicts:
	Chapter5_LossFunctions/LossFunctions.ipynb
Merge remote-tracking branch 'cam/master' into chap6-style

Conflicts:
	Chapter6_Priorities/Priors.ipynb
Merge remote-tracking branch 'cam/master' into chap7-style
Ending code cells with a semicolon.
Ending code cells with a semicolon.
Ending code cells with a semicolon.
Ending code cells with a semicolon.
Ending code cells with a semicolon.
Ending code cells with a semicolon.
Merge branch 'chap2-style'