new implementation for zone connectors:
- one bus connector per zone - wall/window
- the same connector for wall components and windows
- automatic connector sizing - no need to keep track of indices
- examples package added with 1 example
fixed InternalWall implementation
moved Tdes out of protected region in SimInfoManager to avoid warnings in zone
Merge pull request #71 from open-ideas/issue70_zonesConnector

issue70_zonesConnector for single connector on building component models -- not backwards compatible
fixed issue with default value for scaling in heat pumps
also moved scaling parameters to heat pump partial to avoid code duplication

Conflicts:
	IDEAS/Fluid/Production/HeatPumpTset.mo
Merge branch 'issue54_3wayValve' of https://github.com/open-ideas/IDEAS into issue54_3wayValve
change graphic of threeWay vavle + use function Limit instead of min and max + change m_flowBottom to m_flow_a2