review comments incorporated

source/App/EncoderApp/EncAppCfg.cpp

source/Lib/CommonLib/Buffer.cpp

source/Lib/CommonLib/Buffer.h

source/Lib/CommonLib/CommonDef.h

source/Lib/CommonLib/InterPrediction.cpp

source/Lib/CommonLib/InterPrediction.h

source/Lib/CommonLib/InterpolationFilter.cpp

source/Lib/CommonLib/InterpolationFilter.h

source/Lib/CommonLib/Slice.cpp

source/Lib/CommonLib/Slice.h

source/Lib/CommonLib/UnitTools.cpp

source/Lib/CommonLib/x86/InterpolationFilterX86.h

source/Lib/DecoderLib/VLCReader.cpp

source/Lib/EncoderLib/EncLib.cpp

source/Lib/EncoderLib/VLCWriter.cpp