Release dev-0017a

fix offscreen indicator rendering over the toolbar panel

Release dev-0016e

fps counter will stick to bottm left on resize

Release dev-0016d

detailed undo stack dump

Release dev-0016b

some refactorings

Release dev-0016a

id numeration robustness

Release dev-0015a

simple saving and loading

Release dev-0014a

simple saving and loading

Release dev-0013a

fixed application crash with increasing number of edge labels

Release dev-0012a

edge editing

Release dev-0010b

more extractions