message: supported version clang is now 3.8
diff: @@ -168,8 +168,8 @@ if(UNIX)
  set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
  endif(APPLE)
  if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  - if(COMPILER_VERSION VERSION_LESS 3.3 )
  - message(FATAL_ERROR "RINGMesh require Clang version >= 3.3")
  + if(COMPILER_VERSION VERSION_LESS 3.8 )
  + message(FATAL_ERROR "RINGMesh require Clang version >= 3.8")
  endif()
  elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  if(COMPILER_VERSION VERSION_LESS 4.8 )
  