made some changes to EmbeddedPipe and Partial_Emission: port instead of flowport
started working on integration of twoport in partial_emission. Therefor a new partial was created: PipeTwoPort, which has a pressuredrop but no heatport. Pipe_HeatPort is trivially extended from this baseclass as well.
simplified EmbeddedPipe.mo implementation
changed implementation of partial_tabs
Implemented Thermostatic3WayValve.mo using Annex60 baseclasses
added thermostatic3wayvalve example
updated revision history of changed files