code readibility: rename wtTable.parent to wtTable.holder
remove flags that are long unused
move getColumnHeaderHeight/getRowHeaderHeight to separate methods
native scroll - more usable version (needs performance improvements)
native scroll - use same logic for breaking rendering as with dragdealer
performance fix - cache clientHeight
important performance fix - only determine autoColumnSize when some change happened
performance fix - for native scroll estimation is faster than measurement
row height cache should be preserverd until data is not changed; native scroll should use the cache to remember position for scrolled cells
fix editing in native scroll mode
properly calculate how many rows to render in native scroll mode
fix editing in native scroll mode
fix scrolling in native scroll mode
security brake too strict
change condition because one of WOT tests was failing
Merge branch 'feature/nativeScrollbars' into develop