Merge pull request #10 from albertyw/master

Fix for prime divisor code
Updated test section and adjusted comments to align to format.
Removed extra lines. Last commit, change result format to straight list.
Applied PEP-8.
Applied pep 8 and updated comments.
Applied pep 8 and updated comments.
Applied pep 8 and updated comments.
Removed file while in progress.
Applied pep 8 and updated comments.
Applied pep 8 and updated comments.
Reworked tests.
Applied pep 8 and updated comments.
Applied pep 8 and updated comments.
Applied pep 8 and updated comments.
Applied pep 8 and updated comments.
Applied pep 8, updated tests and updated comments.
Additional adjustments.
Applied pep 8, updated tests and updated comments.
Applied pep 8, updated tests and updated comments.
Updated tests and updated comments.