win8x86, win8.1: uninstall menu item not showing up

_From [bruen...@google.com](https://code.google.com/u/109494838902877177630/) on December 14, 2013 13:53:39_

NSIS automatically creates an Uninstall menu item entry for us that shows
up through Win7.

But on Win8 and Win8.1:
win-Q to search: only 4 items.
win key for apps + right-click Show All Apps: only 4 items.

It does show up in Add/Remove Programs and the uninstaller runs correctly
from there so maybe that's sufficient.

Actually on Win8x64: it does show up. But not in Win8x86 nor any Win8.1.

We don't explicitly list it in our NSIS commands: so it must be that Win8
and earlier auto-list all executables in top-level dir?
When I list it, I get two entries on Win7.
I did:
"Uinstall.exe" "Uninstall ${toolname_cap_spc}"
But it didn't work: need full path or sthg.

I tried nsis-3.0a1-setup.exe -- but it has the same behavior.
Since it's an Alpha release I will go back to what's known to work: 2.46.

_Original issue: http://code.google.com/p/drmemory/issues/detail?id=1406_