* Switch openspace.cfg file from a Dictionary-based loading to a variable based loading
* Change ConfigurationManager to not use Dictionary anymore, but a struct with explicit configuration values instead
* 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
* 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
* Change to new logging format (closes#542)
* Adds a screenshots folder that uses the application startup time
* Creating focus nodes for VRT files if the info files contain location information
* Fix issue with removing virtual properties
* Add a method for returning the cartesian coordinates for a geolocation on a planet
- Make it possible to toggle labels again
- Remove Spice calls that lead to exceptions every frame
- Rearrange loading of Spice kernels to reduce error messages
- Set image sequence to hybrid
- Fix height exaggeration slider value range
- Display "No image" for image radio buttons
- Use correct texture clamping method to prevent polar pinch color issue with LinearMipMap
- Add documentation to ImageSequence
