install WEB.conf in the profile directory (if it doesn't exist already) on Windows

based on https://github.com/UniversalMediaServer/UniversalMediaServer/commit/d9b2b41a3335c894c7c5259040a3d194981d4512
Added explicit check for java.io.tmpdir to be writable.
JNA may attempt to unpack its own shared library there.

http://www.ps3mediaserver.org/forum/viewtopic.php?f=6&t=16776&p=79153#p79142
Temporarily revert "install WEB.conf in the profile directory (if it doesn't exist already) on Windows"

This reverts commit 20e8ac14645b4f8931ed6175544a21d1711a1b2f.
DLNA.ORG_OP cleanup (followup to 01bfd9848bc48bb79467b5f6eb88f5999b7bf9fd)
    - update documentation
	- remove redundant code