Alpha 7.19

FEATURES
- new parameter "Marine pollution"
- new law "Fishing regulation" with 2 articles

IMPROVEMENTS
- additional improvements to UI and descriptions

FIXES
- bugs afflicting coalitions
- issues with median home ownership
- when lawmaker dies, another one takes it's place and can not be a candidate anymore
- possible softlock when playing over 100 years
- game could lock on vote for president