Added in header of file.
[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
[Bug #8551] Minor optimization
Merge branch 'master' into multilingual