Notable changes build: Add support for Intel's VTune JIT profiling when compiled with --enable-vtune-profiling. For more information about VTune, see https://software.intel.com/en-us/node/544211. (Chunyang Dai) #3785. Properly enable V8 snapshots by default. Due to a configuration error, snapshots have been kept off by default when the intention is for the feature to be enabled. (Fedor Indutny) #3