Patch #8344:

Submitted by: Thomas Knight (epat)

Parts committed:
1) Fixed a few misspellings in some error strings.
2) Fixed a (theoretical) bug with pyconstraints where a text object could be deleted from python but would remain linked
to the constraint it was assigned to - causing slight UI usage discontinuities!

Not committed yet:
3) Particle system bugfix in this patch has not been committed. Could jahka or brecht check this.

source/blender/python/api2_2x/Text.c

@@ -1,5 +1,5 @@
 /* 
- * $Id: Text.c 11123 2007-06-29 08:59:26Z campbellbarton $
+ * $Id$
  *
  * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
  *
@@ -289,6 +289,7 @@ static PyObject *M_Text_unlink( PyObject * self, PyObject * args )
 					      "this text was already unlinked!" );
 
 	BPY_clear_bad_scriptlinks( text );
+	BPY_free_pyconstraint_links( text );
 	free_text_controllers( text );
 	unlink_text( text );
 

source/blender/python/api2_2x/bpy_data.c

@@ -621,7 +621,7 @@ PyObject *LibBlockSeq_unlink(BPy_LibBlockSeq *self, PyObject * value)
 			
 			if (!data)
 				return EXPP_ReturnPyObjError( PyExc_RuntimeError,
-						"This Group has been removed alredy" );
+						"This Group has been removed already" );
 			
 			/* Run the removal code */
 			free_group(data);
@@ -642,10 +642,11 @@ PyObject *LibBlockSeq_unlink(BPy_LibBlockSeq *self, PyObject * value)
 			
 			if (!data)
 				return EXPP_ReturnPyObjError( PyExc_RuntimeError,
-						"This Group has been removed alredy" );
+						"This Group has been removed already" );
 			
 			/* Run the removal code */
 			BPY_clear_bad_scriptlinks( data );
+			BPY_free_pyconstraint_links( data );
 			free_text_controllers( data );
 			unlink_text( data );
 			free_libblock( &G.main->text, data );