Changed set_under_observation not to set the resource under observation if parameter observed is false.
Changed set_under_observation not to set the resource under observation if parameter observed is false.

tridonic-com/mbed-client,ARMmbed/mbed-client,tridonic-com/mbed-client,ARMmbed/mbed-client,ARMmbed/mbed-client,tridonic-com/mbed-client