[BUG #8311] "w" should represent 1 or 2-digit weekOfYear number, while "ww" is strictly 2-digit number (with a leading zero if needed)
[BUG #8487] Refactor qx.Mobile Picker
* Minor documentation fix
* Refactoring
minor API-doc improvement.
[BUG #8487] Refactor qx.Mobile Picker
* Fixed a problem with waypoints array, when it contains just one single value.
[BUG #8535]  Waypoints should enable a "pull-to-refresh" feature
* Added logic for allowing negative scroll offsets in waypoints.
Improved waypoints demo
update test plan
switch to Generator
[BUG #8522] add stat method
[BUG #8522] add caching and speed up algorithm
[BUG #8522] add caching for 'source' task
[Bug #8539] axis item size allowed to be set to 0
[Bug #8540]  span cell getter implemented. Created spacer widgets will also be marked as empty cell. Furthermore qx.ui.virtual.layer.WidgetCell#getrenderedCellWidget made more progressive.
[BUG #8487] Refactor qx.Mobile Picker
* Fixed problem with scrolling overlay of Picker on Android 4.4 Chrome
Disabled native scrollbars on -webkit-overflow-scrolling:touch and Android.
[BUG #8543] Normalized .getData for non existing attributes
[Bug #8545] Workaround for IE11 bug at getBoundingClientRect() implemented
[Bug #8545] Workaround for IE11 bug at getBoundingClientRect() implemented
[Bug #8551] Do not dispose "qx.event.handler.PointerCore" on unregister