[gegl] (16 commits) Created branch pippin/property-keys

[Øyvind Kolås <ok src gnome org>]

The branch 'pippin/property-keys' was created.

Summary of new commits:

  cd96899... operation: add property-key API
  3008098... add utility paramspec factories with varargs
  85bd7a3... Added new API for chanting
  fd841f9... port a couple of ops to new chanting api
  547bbe0... added gegl_param_spec_file_path_from_varargs
  8cbf52d... add G_GNUC_NULL_TERMINATED for better warnings
  a6bf2a1... gegl-operation-property-keys.h: fix include guard
  bd96b19... make gegl_chant_class_init warn better
  228dbd2... property-keys: unref instead of destroying hashtable
  93b2b8f... fix indentation in prop-keys.c
  c817ee8... emboss: migrate to chant successorr
  14c25a7... color: migrate to new style chanting
  157695c... checkerboard: migrate to new api
  26c14f7... threshold: move to new api
  9189d89... noise-rgb: port to new API
  510bf73... layer: port to new API