Change VS2015 Update3 MSVC Version v19.0.24215.1 To v19.0.24210.0 (#1009)

dlib/cmake_utils/set_compiler_specific_options.cmake

@@ -8,8 +8,8 @@ endif()
 set(USING_OLD_VISUAL_STUDIO_COMPILER 0)
 if(MSVC AND MSVC_VERSION VERSION_LESS 1900)
    message(FATAL_ERROR "C++11 is required to use dlib, but the version of Visual Studio you are using is too old and doesn't support C++11.  You need Visual Studio 2015 or newer. ")
-elseif(MSVC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.24215.1 ) 
-   message(STATUS "NOTE: Visual Studio didn't have good enough C++11 support until Visual Studio 2015 update 3 (v19.0.24215.1)")
+elseif(MSVC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.24210.0 ) 
+   message(STATUS "NOTE: Visual Studio didn't have good enough C++11 support until Visual Studio 2015 update 3 (v19.0.24210.0)")
    message(STATUS "So we aren't enabling things that require full C++11 support (e.g. the deep learning tools).")
    message(STATUS "Also, be aware that Visual Studio's version naming is confusing, in particular, there are multiple versions of 'update 3'")
    message(STATUS "So if you are getting this message you need to update to the newer version of Visual Studio to use full C++11.")