Added demesne law modifier summary tables to top of output laws file
Demesne laws codegen: Iqta levy conversion to tax ratio factored-out
Demesne focus sports a full slider's trade-off bidirectionally

Does not change the min/max levy bounds of all possible slider
settings.
Applied new demesne law curve / focus trade-offs to demesne_laws.txt
demesne_laws.pl v0.9.4 + adjusted parameters
Application of demesne_laws.pl v0.9.4
Demesne law changelog update
Merge pull request #57 from zijistark/demesne-law

Demesne law improvements