* Add initializeGL and deinitializeGL methods to OpenSpaceModule Call releaseAll from ProgramObjectManager in deinitializeGL to guard against errors when deinitializing assets
* Change removeProgramObject function in RenderEngine to take a non-owning pointer instead of a reference to a unique pointer to make it compatible with the ProgramObjectManager
Update Ghoul repository
* Using ProgramObjectManager in more modules to reduce the number of programs compiled at startup
* Version of touch interface for user study that has disabled panning and limited zoom to prevent zooming through the planet surface
* Update starlabels.data file
* Enable minimum picking distance in NDC
* Fix stack corruption bug in TouchMarker
* Version of touch interface for user study that has disabled panning and limited zoom to prevent zooming through the planet surface
* Fix stack corruption bug in TouchMarker
* Add time limit to levmarq solver
* Add debug properties to touch GUI with a compile time flag
* Guard against accessing outside bounds
* Added exponential zoom for faster zoom with increased distance from focus node
* Refined the exponential zoom for better behavior on the touch table
* Added properties for disabling panning and node boundary sphere multiplier for zoom
* Added more debug logging and stopped using camera focusNode (looks deprecated) for distance calculation
* Found error in the deceleration algorithm
* Default-disable debug logging, exponential zoom coeff change and additional debug log statement
Web GUI from Klas Eskilson (three new modules: webgui, webbrowser and cefwebgui)
Parallel connection refactorization
Wormhole server added to the main repository
Transfer function editor work from Cristoffer Särevall
Update ghoul
* Fix Triton asset file
* Display an error if no Property matches a regex in setPropertyValue
* Correct user-facing name for some Moon assets
* Add fade in and fade out helping functions
* Reenable label fading in New Horizons
* Added GUI hint to hide uninteresting nodes
* Set Hidden Hint on barycenter nodes
* Introduced guiName to PropertyOwner
* Added requirement that PropertyOwner::identifier may not contain whitespaces
* Changed Name to Identifier in asset and scene files
* Added new PropertyOwner to RenderEngine that owns the ScreenSpaceRenderables
* Moved Name and GuiPath into GUI group
* Added user-facing names to layer groups
* Implemented property animation mechanism
* Added easing functions to Ghoul and make them usable in animation
* Make sure that we don't leave properties around if SceneGraphNodes are deleted
* Adding opacity settings to base renderables
Alexander Bock