Update CHANGELOG.md
bugfix: copy/paste did not work on Mac since 0.8.6 (#348)
bugfix: global shortcuts (like CTRL+A) should be blocked when cell is being edited
bugfix: numeric cell editor did not convert cell data to number type when data source was an object
bugfix: use default cell editor for a cell that has declared only cell renderer (#453)
bugfix: another attempt to solve scrolling to the top of table on any key press if the top is not on the screen (#348)
remove redundant file
Handsontable 0.8.7