Allow for empty definition types (eg from legacy RAdddin)

Author: rkapl123

My Project/AssemblyInfo.vb

@@ -30,5 +30,5 @@ Imports System.Runtime.InteropServices
 ' You can specify all the values or you can default the Build and Revision Numbers 
 ' by using the '*' as shown below:
 
-<Assembly: AssemblyVersion("1.0.0.2")>
-<Assembly: AssemblyFileVersion("1.0.0.2")>
+<Assembly: AssemblyVersion("1.0.0.3")>
+<Assembly: AssemblyFileVersion("1.0.0.3")>

ScriptAddin.vb

@@ -293,7 +293,7 @@ Public Module ScriptAddin
                     ScriptDefDic("skipscripts")(ScriptDefDic("skipscripts").Length - 1) = False
                 ElseIf deftype = "dir" Then
                     dirglobal = defval
-                Else
+                ElseIf deftype <> "" Then
                     Return "Error in getScriptDefinitions: invalid type '" + deftype + "' found in script definition!"
                 End If
             Next