Updated icon.
Revised models of solar collector.
Merge branch 'master' into solarCollector
Updated reference results
Merge branch 'solarCollector' of https://github.com/lbl-srg/modelica-buildings into solarCollector
Moved generic class to bottom of package browser.
Added smoothorder annotation and declared constant expression as a parameter.
Minor code cleanup
Merge branch 'solarCollector' of https://github.com/lbl-srg/modelica-buildings into solarCollector
Revised solar collector models.