fix issue 56

Author: dehann

src/GraphsDFG/services/GraphsDFG.jl

@@ -7,7 +7,7 @@ function attributes(v::GraphsNode, g::T)::AttributeDict where T <:GenericInciden
     AttributeDict(
         "label" => v.dfgNode.label,
         "color" => v.dfgNode isa DFGVariable ? "red" : "blue",
-        "shape" => v.dfgNode isa DFGVariable ? "box" : "ellipse",
+        "shape" => v.dfgNode isa DFGVariable ? "ellipse" : "box",
         "fillcolor" => v.dfgNode isa DFGVariable ? "red" : "blue"
         )
 end

src/entities/DFGVariable.jl

@@ -15,6 +15,8 @@ mutable struct VariableNodeData
   inferdim::Float64
   ismargin::Bool
   dontmargin::Bool
+  # Tonio surprise TODO
+  # frontalonly::Bool
   # A valid, packable default constructor is needed.
   VariableNodeData() = new(zeros(1,1), zeros(1,1), Symbol[], Int[], 0, false, :NOTHING, Symbol[], "", false, false, false, false)
   VariableNodeData(x1::Array{Float64,2},