* #5998: remove "using namespace std" from auriorecord.h and MimeParameters.h

sflphone-common/src/MimeParameters.h

sflphone-common/src/audio/audiorecord.cpp

sflphone-common/src/audio/audiorecord.h

sflphone-common/src/audio/audiortp/AudioRtpRecordHandler.cpp

sflphone-common/src/audio/audiortp/AudioRtpRecordHandler.h

sflphone-common/src/audio/echocancel.cpp

sflphone-common/src/audio/echocancel.h

sflphone-common/src/audio/mainbuffer.cpp

sflphone-common/src/audio/ringbuffer.cpp

sflphone-common/src/audio/ringbuffer.h

sflphone-common/src/managerimpl.cpp

sflphone-common/src/sip/sipvoiplink.cpp