Wrapped tex strings to 80-character limit

[duncanmmacleod]

This PR appeases pep8 some more by wrapping TeX strings to the 80-character limit. Also included are a few tex bug fixes, and some other pep8 style changes.

This PR should not change the functionality of any code, in any way.

[coveralls]

Pull Request Test Coverage Report for Build 89

• 2 of 4 (50.0%) changed or added relevant lines in 2 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage remained the same at 40.441%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
gwin/likelihood.py	1	2	50.0%
gwin/results/scatter_histograms.py	1	2	50.0%

Files with Coverage Reduction	New Missed Lines	%
gwin/workflow.py	1	0.0%

Totals
Change from base Build 86:	0.0%
Covered Lines:	899
Relevant Lines:	2223

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💛 - Coveralls

[cdcapano]

@duncanmmacleod Thanks for doing this... do you have an example output page?

[duncanmmacleod]

https://ldas-jobs.ligo.caltech.edu/~duncan.macleod/gwin/19/html/ (requires LIGO.ORG authentication)

[cdcapano]

Looks good! Thanks for figuring out the line continuation with tex.