Fix the build of the Java classes when using MSVC 2010 and later. Something in the...

Fix the build of the Java classes when using MSVC 2010 and later.  Something in the recesses of my brain is telling me that I tried this before and it failed under some circumstances, but it must have been a bug in an older CMake implementation.  CMake 2.8.8 and later seem to work fine with this patch.  This patch also updates the minimum required version to 2.8.8, because 2.8.8 fixed another issue that was preventing the SIMD code from building under MSVC 2010 and later.

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1149 632fc199-4ca6-4c93-a231-07263d6284db