Comment 1 for bug 670608

I have a few comments about the proposed impl:
- This seems like a good idea if there is time. There should be a property in HomeButtonApplication (like "program" or "exe") to directly specify the executable as it may not always be appropriate to specify the key in gconf. So if program/exec is specificed use it, otherwise look up exe from the key.

- If not time a simpler solution that we discussed would be sufficient. That is when loading Home.qml first check for an alternative Home.qml in a given location (i.e. /usr/share/unity-2d-places/custom/Home.qml). If not found default to original Home.qml