Revert "improve failed test: should create new row when last cell in last row is edited by autocomplete: added some timeout after chosen value from dropdown"

This reverts commit d1031dbf87a7374f3b611f661a2b9de19159b4ca.
Revert "small improvements to failing tests"

This reverts commit 39b84ffbe564d743887fc80ad722dcd4c68772a1.
update copyright year
fix Performance spec
normalize container inline styles
fix forced rendering of native scroll
Small correction in removeRowSpec
Column/Row Context Menu (#265), Feature Request: Select entire row and column (#1440)