Get the mdl frames script property working

Maybe late 2.78+, blender added the ability to use any ID type in
PointerProperty, which is just what I wanted for the frames script.

tools/io_mesh_qfmdl/__init__.py

@@ -81,11 +81,10 @@ class QFMDLSettings(bpy.types.PropertyGroup):
         name="Effects",
         description="Particle trail effects")
 
-    #doesn't work :(
-    #script = PointerProperty(
-    #    type=bpy.types.Object,
-    #    name="Script",
-    #    description="Script for animating frames and skins")
+    script : PointerProperty(
+        type=bpy.types.Text,
+        name="Script",
+        description="Script for animating frames and skins")
 
     xform : BoolProperty(
         name="Auto transform",
@@ -101,9 +100,6 @@ class QFMDLSettings(bpy.types.PropertyGroup):
     md16 = BoolProperty(
         name="16-bit",
         description="16 bit vertex coordinates: QuakeForge only")
-    #script = StringProperty(
-    #    name="Script",
-    #    description="Script for animating frames and skins")
 
 class ImportMDL6(bpy.types.Operator, ImportHelper):
     '''Load a Quake MDL (v6) File'''

tools/io_mesh_qfmdl/export_mdl.py

@@ -245,18 +245,10 @@ def get_properties(
     if md16:
         mdl.ident = "MD16"
 
-    #tomporarily disabled
-    #script = obj.qfmdl.script
-    script = None
+    script = obj.qfmdl.script
     mdl.script = None
     if script:
-        try:
-            script = bpy.data.texts[script].as_string()
-        except KeyError:
-            operator.report({'ERROR'},
-                            "Script '%s' not found." % script)
-            return False
-        pl = pldata(script)
+        pl = pldata(script.as_string())
         try:
             mdl.script = pl.parse()
         except PListError as err:

tools/io_mesh_qfmdl/import_mdl.py

@@ -390,7 +390,7 @@ def set_properties(mdl):
         mdl.obj.qfmdl.synctype = 'ST_SYNC'
     mdl.obj.qfmdl.rotate = (mdl.flags & MDL.EF_ROTATE) and True or False
     mdl.obj.qfmdl.effects = parse_flags(mdl.flags)
-    #mdl.obj.qfmdl.script = mdl.text.name #FIXME really want the text object
+    mdl.obj.qfmdl.script = mdl.text
     mdl.obj.qfmdl.md16 = (mdl.ident == "MD16")
 
 def import_mdl(operator, context, filepath, **opts):