Updated to build 1.15

[1.15]

1) The People Smuggling dilemma options now also impact future immigration levels.
2) Faster game start.
3) Some previously hidden effects are now visible: The policy outputs that affect a policy cost or income.
4) The sort order for potential ministers, voter groups and inputs/outputs to sim values and situations are all now saved.
5) Illegal Immigration amnesty dilemma now has effects on future immigration.
6) Rebalance of some events to happen more or less often.
7) Rebalance of all dilemmas to make trigger frequencies more sensible
8) Customizable party colors.
9) Editable minister names (just click on them).
10) Fixed issue where older modded policies caused errors when loading.
11) Some performance increases for low-spec video cards.