Fev-kegg

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- Bug-fix: non-existing attribute
- Bug-fix: KEGG changed attributes of gene type

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- Bug-fix: Improved parsing and error handling of gene description files.
- Bug-fix: Fixed deprecated API-calls in older experiments.
- Bug-fix: Export of GraphML failed due to None values.
- Added experiment 45.
- Fixed typos.
- Master's thesis release!

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- Bug-fix: Added missing majority percentage parameter in several experiments.
- Added new experiment.
- Improved sorting of neofunctionalisations. Now they sort by EC number first.
- Improved sorting for enzymes. Now they sort by EC number first.
- Improved sorting for EC numbers. Now they sort naturally, not lexicographically.

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- Bug-fix: When choosing the type of redundancy in the RedundancyType enum, TARGET_FLEXIBILITY and SOURCE_FELXIBILITY used to always equal to FLEXIBILITY, due to the scriptiness of Python. Now they are treated differently.
- Added partial redundancy to the the RedundancyType enum, plus logic for the Redundancy and RedundancyContribution classes.
- Added export of dictionaries containing Neofunctionalisation/FunctionChange/Element objects into a formatted HTML file.
- Added three more experiments involving the above.

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- Initial release.