Merge pull request #45 from will-moore/export_Big_Images_as_jpeg_10841_dev_4_4

Export big images as jpeg 10841 dev 4 4
Merge pull request #47 from joshmoore/scripts_readme

Scripts readme
Merge pull request #48 from will-moore/Combine_Images_param_unwrap_11473

Combine images param unwrap 11473
Fix PEP8 errors (line length & whitespace)
merge dev_4_4 -D org -I include -E exclude: PR 49 (Export big images as jpeg 10841 dev 4 4)