Add patch and bep file for CMake 2.8.5

* The patch is based on the 2.8.4 patch, i.e. keeps the changes from it (save
  for corrected indentation).
* Clean up superfluous checks where it was assumed that Haiku defines the
  __BEOS__ cpp macro.
* Platform/Haiku.cmake:
  - No longer define the BEOS CMake variable, but define HAIKU instead. Adjust
    all checks accordingly.
  - No longer include Platform/UnixPaths. There isn't really anything helpful
    in it for us. Instead define UNIX directly and use the correct Haiku paths.
  - Also add the */non-packaged paths, although they don't exist on a non-PM
    Haiku. Will require less changes later.
  - Clean up a few variables that weren't correct according to the
    documentation (like CMAKE_DL_LIBS) and add missing ones.
* cmExportCommand.cxx, cmFindPackageCommand.cxx, cmLocalGenerator.cxx,
  CPack/cmCPackGenerator.cxx: No longer use BPath and the C++ find_directory().
  Now use the C find_directory() instead, getting rid of the otherwise
  unnecessary libbe dependency.

dev-util/cmake/cmake-2.8.5.bep

@@ -0,0 +1,28 @@
+DESCRIPTION="cmake - Cross platform Make" 
+HOMEPAGE="http://www.cmake.org" 
+SRC_URI="http://www.cmake.org/files/v2.8/cmake-2.8.5.tar.gz"
+CHECKSUM_MD5="3c5d32cec0f4c2dc45f4c2e84f4a20c5"
+REVISION="1"
+STATUS_HAIKU="stable"
+DEPEND=""
+BUILD {
+	cd cmake-2.8.5
+	# cmake appends the prefix to mandir and datadir 
+	# so using ../../ to back that part out but for some reason
+	# the doc was also picking up /boot, so had to back it out 3 times
+	# this seems to work but might still need some further adjusting
+#	sed -i 's/${CMAKE_DATA_DIR}\/include cmCPluginAPI.h/${CMAKE_PREFIX_DIR}\/include cmCPluginAPI.h/g' Source/CMakeLists.txt
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
+		--datadir=/data/cmake \
+		--docdir=/documentation/doc/CMake \
+		--mandir=/documentation/man
+	make
+}
+
+INSTALL {
+	cd cmake-2.8.5
+	make install
+}
+
+LICENSE="CMake"
+COPYRIGHT="2002-2011 Kitware, Inc., Insight Consortium, All rights reserved."