Only use colorized diagnostics in gcc-4.9+
Only use colorized diagnostics in gcc-4.9+

Igor-Rast/printipi,Wallacoloo/printipi,harry159821/printipi,Wallacoloo/printipi,Wallacoloo/printipi,harry159821/printipi,harry159821/printipi,Igor-Rast/printipi,harry159821/printipi,Wallacoloo/printipi,Igor-Rast/printipi,Igor-Rast/printipi