operation: Allow new ops to be loaded after initialization.
operation: Update comment.
Add gegl:channel-mixer (imported from GIMP)
Add gegl:antialias (imported from GIMP)
Updated POTFILES.in
operations: Antialias works on a perceptual color space

Otherwise, dark areas appear eroded.
Added Basque language\nAdded 'eu' (Basque) to LINGUAS
operations: channel-mixer works on a perceptual color space

It's a bit arbitrary here, but it keeps compatibility with GIMP and
the behaviour feels slightly more coherent.
operation: Move the hash table creation to gegl_init
Revert "operation: Move the hash table creation to gegl_init"

This reverts commit eefb4748813b1509b456d7075dd557f7e9adf5d9.
operation: Move the hash table creation to gegl_init

This time, call it from gegl_post_parse_hook
operation: Stop leaking operation class references.
operations: sdl-display displays sRGB
buffer: Do gegl_buffer_copy abyss calculations in the dest buffer's format

Benefits:
 * Speeds up copying from the abyss.
 * Makes the abyss read as transparent when the dest has alpha and
   the source does not.
 * More consistent with whatever gegl_buffer_iterator does.
buffer: Make gegl_buffer_copy2 a static function.
buffer: avoid extra memcpy in gegl_buffer_copy2
utils: Add the G_GNUC_MALLOC attribute to applicable functions.
utils: Remove unused function prototypes.
Make gegl_buffer_get/set introspectable
Add python test cases for GeglBuffer