Update docs with new template and documentation

[akmorrow13]

• switches to default docs template
• adds autosummary documentation for python

[coveralls]

Coverage remained the same at 79.206% when pulling b13549b on akmorrow13:update-docs into fc67969 on bigdatagenomics:master.

[AmplabJenkins]

Test PASSed.
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[heuermh]

Awesome, thanks for doing this! Found a few minor typos

[heuermh]

dataframeself → dataframe.

[heuermh]

GenomicDatset → GenomicDataset

[heuermh]

Alignment Context → Variant Context

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
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Test PASSed.

[heuermh]

@akmorrow13 Ping me when this is ready to merge

[akmorrow13]

@heuermh I fixed the comments it is ready for merge. I tested locally with sphinx but it is always hard to tell for sure whether readthedocs will run.

[heuermh]

Same here (with sphinx), let's give it a try.

[heuermh]

Thank you, @akmorrow13!