Merge pull request #60 from colincoghill/master

sync to master
Merge pull request #61 from colincoghill/develop

Merge pull request #60 from colincoghill/master
setup a .gitignore file
Update README.md
Update README.md
Merge pull request #63 from jamesdoherty/master

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Minor PEP8 tidy while I remember what this branch does
Update README.md