Added first draft of pulse interface
removed unneeded timestamp since this is provided by the utility component for php of stevleibelt
renamed interface
started with implementing pulse
fixed spelling
Adapted pulse and its interface
Added PulseAwareInterface
removed previous commit
updated pulse aware interface
Adapted interface and implementation
Refacotred handling of pulses
Finished new calculation
enabled second test
adapted comments
Added test for client who do not implement pulse aware interface
removed unneeded tests
removed debug output
Added test for detachAll
Removed dead code
Updated readme