Correct typo in cp of water #54

The specific heat capacity of water has been given as cp_const = 4148.
This is changed to cp_const = 4184.
Merge branch 'master' into issue54_cpWater
Updated reference results due to change in cp of water.
Merge pull request #55 from iea-annex60/issue54_cpWater

Issue54 cp water
Initial commit of the movers from the Buildings library.

This is for #56.
Changed media.

This is for #56, and is a work-around due to #53.
Corrected icon.

This is for #56.
Added dummy argument for Internal.solve

This is for #61 to avoid a warning in Dymola.
Merged damper update from Buildings lib.

This is for #64. It merges the files in which the documentation was updated.
Merge branch 'issue61_dymola2015' into issue65_synchBuildings
Added additional Type declaration.

These are needed for heat exchangers in Buildings library.
Improved documentation.
Removed unrequired assignment of species concentration.
Added pressure drop.

This is needed for te model to also work with incompressible media, such as used in the Buildings library.
Merge pull request #62 from iea-annex60/issue61_dymola2015

Added dummy argument for Internal.solve

Example simulates correctly in Dymola 2014 FD01 - did not test in 2015 version.
Merge branch 'master' into issue65_synchBuildings
Removed import statements.
Removed import statements.
Merge pull request #64 from iea-annex60/issue64_damper

Merged damper update from Buildings library
Added tolerance 1e-6 to simulation command.