Rewrote README.markdown: actual setup and some ideas
Adding all the properties preserved by base change
Adding all the relations for properties preserved by base change
We need to be able to impose an order on the keys
Adding all the relations for properties preserved by composition
Using collections.OrderedDict preserves the order from the JSON file
Starting to use colours in the tables
Moved the CSS file
Added the 'status' of a relation in morphism-properties-preservation

It will be 'true', 'false', 'unknown', or something like it.