Fixes AV in both IWjQAccordion and IWjQPageControl when creating pages/sections at runtime in async events and when deleting pages/sections at design time
IWjQAccordion wound’t correctly trigger async events when page changed
New IWCheckBox wouldn’t update enabled state during async event
New IWCheckBox won’t render correctly if enabled = false
zlib x64 compatibility with older processors (no AVX instructions) restored. This regression bug has been introduced in IW 15.3.0 and won’t affect older builds.