MHC sharing window focus with MPLAB X

[joeostrander]

Steps to reproduce:

1. Highlight MPLAB X project name
2. Switch over to MHC window
3. Delete a component from the project graph area

MHC will prompt for confirmation of the component deletion, then MPLAB X will prompt if you want to delete the whole project that had been highlighted earlier.

The sharing window focus behavior is also evident when doing Ctrl+Z in MHC -- code will undo in MPLAB X.