Adds a global "Ctrl+F5" refresh All command

I found myself wanting a global "refresh all" shortcut similar to the m2e "alt+F5" so this pull adds a "ctrl+F5" global shortcut that calls "refresh all" action if appropriate (refreshAll is enabled).

![workspace 1_069](https://cloud.githubusercontent.com/assets/595221/5334922/fabcbdd4-7ed8-11e4-941a-0cf1eaf6e8c6.png)