Now uses the values present in the import document
rather than calculating the formula. This speeds up
document loading.
TODO: Extend this to string results as well.

use a separate prefix enabled method instead of changing the ABI of cppuhelper
also - lookup the prefix in the dllcomponentloader in case we are called this way
also - add a unit test for the prefix change

we need to save the information if we have a global range name or a
local range name in the uno api too

Don't use any i prefix for import library, and deliver it.

I don't really see the point in having the UDK_MAJOR in the import
library name. We don't do that for any Unix either, just -lstore is
used. It isn't as if it would make any sense in keeping a mix of
(import) libraries for incompatible versions/builds of the LO (SDK) in
the same location anyway. The simpler, the better.

This partially reverts commit d7bc3048ee87ca5cb190fe8236b354db9b9ef39e
"Remove OS/2 support."