Remove the old port position and change it into preference settings

sflphone-gtk/src/accountwindow.c

sflphone-gtk/src/configurationmanager-glue.h

sflphone-gtk/src/configwindow.c

sflphone-gtk/src/dbus.c

sflphone-gtk/src/dbus.h

sflphone-gtk/src/sflphone_const.h

src/account.h

src/dbus/configurationmanager-glue.h

src/dbus/configurationmanager-introspec.xml

src/dbus/configurationmanager.cpp

src/dbus/configurationmanager.h

src/managerimpl.cpp

src/managerimpl.h

src/sipaccount.cpp

src/sipvoiplink.cpp

src/sipvoiplink.h

src/user_cfg.h

src/useragent.cpp

src/useragent.h