See extended description

1. Message displayed on successful loading of image
2. Symbol resolution logic fixed (?)
3. Tracking when image changed and prompting to save
4. Delete symbol functionality added
5. Multiple expressions can be selected and evaluated in the workspace
6. Refresh system browser functionality added
7. Fixed display of continuation objects in system browser
8. Display of text in transcript window fixed (user changing cursor
position, auto scroll to end)
9. Moved concat-strings to core package
10. Refresh icon added