Fix the icon size in app lists.

E.g. the "Select app" dialog in the profile group configuration uses
this layout to inflate the list dialog. However app icons can have
non-standard sizes so we enforce a consistent width and height.

Change-Id: I71731a9bb3548c699cc2e0e600a5ff371ceacbc3
WiFi: Add forget all networks

Change-Id: Id4e0bf76743dadf62a23e070e6421dd1549df29c

Conflicts:
	res/values/cr_strings.xml