Refactor the Matlab documentation section about connection
Update Matlab documentation with new ROI/Shape functions
Modify section of Matlab page about loading objects from server

- Document use of the new getProjects, getDatasets... functions
- Create sub-sections for each object for better visibility
Fix latest OMERO job artifact link
Add Matlab code block highlighting
Add paragraph about retrieving unloaded projects/datasets
Add documentation for getImages(session, ids, type) signature
Add documentation for plane, tile, stack utility functions
Add section about delete functions
Add documentation fixes as per J-M's suggestion