Visl3d

Updates

- Fix bugs for _createVis_
- Fix bugs for markers
- Improve capabilities for multi-line visualisations
- Change form of creation of 2D image
- Add option for a default description of the cube
- Access x3dom and other scripts through personal webpage

**Full Changelog**: https://github.com/ixakalabadie/ViSL3D/compare/v0.2...v0.4

Updates:

- New function (__visual.createVis()__) to create visualisations in a single HTML file (no external X3D). This allows opening visualisations without an HTTP server.
- Fix errors for multiple spectral line visualisations and for overlays

First release of VisL3D.