COMP: Add support for building on windows using Qt 4.8.6 and OpenSSL 1.0.1h

For more details see inlined comment. Also copied below for convenience:

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# Starting with Qt 4.8.6, we compiled [1] OpenSSL binaries specifically for each
# version of Microsoft Visual Studio. To understand the motivation, read below.
#
# As explained in [2][3], if a library meets these two conditions:
#   (a) exposes a pure C interface
#   (b) is linked against static version of the CRT
# the version of the compiler and runtime used to build the library
# shouldn't matter.
#
# That said, since OpenSSL is built as a shared library using the '/MD' [4]
# flag, it is not possible to use the same library with different runtime
# libraries.
#
# We found out that '/MD' was used by inspecting the the file 'ms/ntdll.mak'
# generated atfer configuring OpenSSL.
#
# If you find mistake in this explanation, do not hesitate to submit a patch
# to fix this text. Thanks.
#
# [1] Script used to compile OpenSSL: https://gist.github.com/jcfr/6030240
# [2] http://siomsystems.com/mixing-visual-studio-versions/
# [3] http://bytes.com/topic/net/answers/505515-compile-different-versions-visual-studio
# [4] http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
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git-svn-id: http://svn.slicer.org/Slicer4/trunk@23552 3bd1e089-480b-0410-8dfb-8563597acbee