Don't show weight or value for keys (Fixes #1815)
Slightly improve count dialog layout
InventoryWindow: don't unnecessarily update preview on opening count dialog
Revert "Remove horizontal messagebox layout, not used in vanilla (Fixes #1402)"

This reverts commit 40d6c8abf717b3112cc26c8d7be016974deb6a0f.
Replace more .tga->.dds hacks with ResourceHelpers
InteractiveMessageBox: lay out buttons horizontally if button width does not exceed message width (Fixes #1812)

Also fix some layout bugs.
Add persuasion GMST to ensureNeededRecords (Fixes #1817)
Encapsulate magic effect magnitude (Feature #1489)
Implement magic effect script instructions (Feature #1489)
Store magic effect Base values in savegame (Fixes #1489)
Fix fortified skill not immediately updating on changing equipment
Merge remote-tracking branch 'scrawl/master'