Remove legacy family mode (first pass).

js/003-data/gameVariableData.js

slave variables documentation - Pregmod.txt

src/Mods/DinnerParty/dinnerPartyExecution.tw

src/cheats/mod_EditChildCheatNew.tw

src/cheats/mod_EditInfantCheatNew.tw

src/cheats/mod_EditSlaveCheat.tw

src/cheats/mod_editSlaveCheatNew.tw

src/data/backwardsCompatibility/datatypeCleanup.js

src/data/backwardsCompatibility/updateSlaveObject.js

src/data/newGamePlus.js

src/endWeek/saBeYourHeadGirl.js

src/endWeek/saPleaseYou.js

src/endWeek/saServeThePublic.js

src/endWeek/saWhore.js

src/events/intro/introSummary.tw

src/facilities/nursery/childInteract.tw

src/facilities/nursery/nurseryDatatypeCleanup.js

src/facilities/nursery/nurseryWidgets.js

src/interaction/main/walkPast.js

src/interaction/slaveInteract.js