sampler: quality over speed
lohalo: typo in context_rect param
lohalo: sensible speed/quality compromise
lohalo: bit more quality/bit less speed
transform_generic: flip or not on a per tile basis
transform tile parameters tweaked for least annoying worst case behavior within GIMP without compromising quality
cosmetic
transform-core: unneeded intermetiate pointer
transform-core: harmless refactor
transform-core and sampler: lint removal
sampler-lohalo: wrong count in the mipmap aggregation
sampler-lohalo: arithmetic simplification
opacity: add a RGBA fast path
add gegl_operation_get_source_format

This provides a way of checking the BablFormat of a given pad in the final
"prepare" of the operation and after, making it possible to rejig properties
or similar to achieve format/precision/etc dependent processing.
gegl-random: add documentation strings
Performance improvements in oilfy and opencl support.
opacity: refactor RGBA path dispatch
sampler.c/h: tile size and offset more friendly to resize without too much slow down for bad rotations
opencl: out-of-bounds access in box-blur
Updated Spanish translation