Don't disable multi-user widget when Device Policy is enabled.

While fixing this bug, I fixed a few other issues:
- Always call showAppropriateWidgetPage(), even when DPM enabled
- Always disable status view interaction, even when DPM enabled

Fixes bug 7294880

Change-Id: Ia8495555c1940f2b38f42389558f46fde6aab775
1 file changed