1. move model-config to south panel
2. in the diagram dblclick opens model as a new tab inside diagrams tab-panel (draft)
models diagram - add use of closable tabbed plugin, by dblclick on a model it is opend as a closable tab
models diagram - reactivate already opened model-tab instead of creating it again
add production dependencies - added minified version of afStudio; remove logging
Merge branch 'master' of github.com:appflower/appflower_studio