Rename unlockedShapeCount.
Add onShapeWillDelete notify.
Add currentPoint, currentModelPoint and snapshotWithShapes.
Insure the shape is visible in snapshotWithShapes.
v1.1.24
Merge branch 'r24' into develop

Add selectedShapeID, currentPoint, currentModelPoint and snapshotWithShapes.
Add onShapeWillDelete notify.
Skip empty content in showMessage.
Add 'snapTangent' option.
R25: Add vgpivot.png
Add GiViewHelper.modelBox.
R25