add deprecated message

src/circle_path.scad

@@ -12,6 +12,7 @@ use <__comm__/__frags.scad>;
 
 function circle_path(radius, n) =
     let(
+        _ = echo("<b><i>circle_path</i> is deprecated: use <i>shape_circle</i> instead.</b>"),
         _frags = __frags(radius),
         step_a = 360 / _frags,
         end_a = 360 - step_a * ((is_undef(n) || n > _frags) ? 1 : _frags - n + 1)

src/polysections.scad

@@ -11,6 +11,7 @@
 use <util/reverse.scad>;
 
 module polysections(sections, triangles = "SOLID") {
+    echo("<b><i>polysections</i> is deprecated: use <i>sweep</i> instead.</b>");
 
     function side_indexes(sects, begin_idx = 0) = 
         let(       

src/rotate_p.scad

@@ -10,4 +10,6 @@
 
 use <_impl/_rotate_p_impl.scad>;
 
-function rotate_p(point, a, v) = _rotate_p_impl(point, a, v);
+function rotate_p(point, a, v) = 
+    let(_ = echo("<b><i>rotate_p</i> is deprecated: use <i>ptf_rotate</i> instead.</b>"))
+    _rotate_p_impl(point, a, v);