Send shapeChanged notify in MgCommandDraw::touchMoved().
Add mgstrcallback.h
Change the parameter type of onShapeAdded.
Add a parameter of onDocLoaded.
Add 'startMustVertex' option.
Add 'snapTangent' option.
Fix MgLocalized::getString() and snapping functions.
Add 'canBoxSel' option.
Add MgMotion parameter of setStepPoint.
Merge branch 'feature/snapTangent' into develop