clear fix
fix editor selection
convert :hit() to UI units
cleanups
UI: use the "default" state if none available and a state is required; implement right and middle click on widgets
fix
rename mouse button mappings, support back/forward mousebuttons in widgets
Implement the hold event in the UI: replaces the old pressing event and can be used for all kinds of stuff (scrollbars, window movers etc.)
remove the comment
left/right/middle/back/forward click menus + hover menus
get rid of some hovering hacks for better scrollbar, slider and editor behavior
improved hover/click handling in World (handles widget states)
multiline selection fixes
typo fix
selection by dragging now autoscrolls editor if needed
horizontal editor autoscroll, negate offset_h, fix virt_w
draw the selection box properly
customizable colors for editors and fields (text itself, selection box and wrap sign)
fix headers
get rid of some superfluous code