Moved "create image" to File submenu

Removed refs to "Opaque"

Fixed some zoom bugs - not all!

New release: 3.1.6

Include jar file

Update README.md

Remove refs to `log4j`

Minor fixes; fixed colouring in generated GoFBP code

Completed logic to build GoFBP networks from diagrams

Update README.md

Fixed bug in Edit (Block) Description; started on GoFBP support