sync

TODO

@@ -1,5 +1,8 @@
 - do conv and morph quickly as simple wrappers over the vips7 operations
 
+- add vips_gaussian_blur() with approx / int / float precision, maybe
+  vips_resize() as well?
+
 - do much fancier profiling with timing on all locks saved in memory and
   dumped on exit
 
@@ -8,21 +11,6 @@
 
 - use g_log() instead of vips_info()
 
-- do we always call copy_fields and demand_hint with ALL input images? what
-  about the operators in conversion?
-
-  could we add something to check that the two calls agree on the image lists?
-  I think they should
-
-  combine the two into one call?
-
-  hist_find at least does not call demand_hint, same for all writeline output
-  operators I guess
-
-  how about
-
-  	vips_image_pipelinev( out, hint, in1, ... )
-
 - object construction is threadsafe, but class construction is not
 
   https://github.com/jcupitt/libvips/issues/64