[librsvg] (15 commits) ...Merge branch 'migration-docs' into 'master'

[Marge Bot <marge-bot src gnome org>]

Summary of changes:

  65ce8f1... (#669): Document that intrinsic_size_in_pixels returns floa
  733df4e... Fix links in the C docs to the API ordering sections
  be0f2fc... Deprecate rsvg_handle_get_dimensions()
  c7149ec... Recommend rendering to a viewport in the docs for get_intri
  75f746c... Fix deprecation docs for RsvgPositionData and rsvg_handle_g
  e59ea00... Mention SVG2 in the start of the docs
  7ce7c5d... Move docs for render_cairo and render_cairo_sub to a deprec
  c8dfd92... Note the deprecation of the GdkPixbuf functions
  57cfb4c... Fix "##" duplicated hashes in the C docs
  435008c... Don't mention deprecated alternatives in the GdkPixbuf func
  8180554... Do not recommend deprecated functions in the deprecation do
  16a8d10... Mention API ordering restrictions for the get_pixbuf() func
  e7aaeeb... Remove another deprecated example
  69350d1... Clarify the Recommendations section a bit
  dfc21c0... Merge branch 'migration-docs' into 'master'