Clean up fade drawing issue.

Timeline/Region.C

@@ -518,6 +518,8 @@ Region::draw_fade ( const Fade &fade, Fade::fade_dir_e dir, bool line, int X, in
     for ( int i = 0; i < width; ++i, ts += tsx )
         fl_vertex( i / (float)width, 1.0f - fade.gain( ts ) );
 
+    fl_vertex( 1.0, 0.0 );
+
     if ( line )
         fl_end_line();
     else

Timeline/Region.H

@@ -76,11 +76,11 @@ public:
                         g = fi;
                         break;
                     case Sigmoid:
-//            g = sin( fi * M_PI / 2 );
                         g = (1.0f - cos( fi * M_PI )) / 2.0f;
                         break;
                     case Logarithmic:
-                        g = pow( 0.1f, (1.0f - fi) * 5.0f );
+                        /* FIXME: this is wrong */
+                        g = pow( 0.1f, (1.0f - fi) * 3.0f );
                         break;
                     case Parabolic:
                         g = 1.0f - (1.0f - fi) * (1.0f - fi);