Bugfix for ticket #442.
renamed two modules:
Module_LayerAndTime -> Module_Layers (to be less confusing with Module_LayersTimeProgress)
Module_WCPSDEMWCPS -> Module_WCPSDemWCPS
Merge branch 'master' of https://github.com/PHerzig/EarthServer
Added Module_LayersTimeProgress with Terrain
Added sidePanelLinks
Updated examples: BGS with child model and navigation mode