Fix propagation of property events and undo/redo operations
Merge pull request #351 from mleduque/PLGDS-215

PLGDS-215 Fix propagation of property events and undo/redo operations
IDEUI-390 Complete refreshing of Keybindings settings 

Task-Url: https://jira.codenvycorp.com/browse/IDEUI-390
Merge pull request #352 from sunix/IDEUI-390

IDEUI-390 Complete refreshing of Keybindings settings