[librsvg] (18 commits) ...Merge branch 'xinclude-error-handling'

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  328483d... sax_error_cb(): Construct a string with the error message
  48d2679... Notify the XmlState when libxml2 finds a parsing error
  f9c873a... Distinguish between fatal errors and resource errors in xin
  3fa3726... Move storage of libxml2 entities to Rust
  b0e8103... rsvg-io.c: Use rsvg_acquire_gvfs_stream() for all cases
  368f1af... rsvg-load.c: Parse CSS data in XML processing instructions 
  27a032f... css_import_style(): Use handle::load_css() instead of dupli
  e5ada1f... rsvg_get_input_stream_for_loading(): Extract into its own s
  1a249da... error.rs: Add an empty RsvgError and impl glib::error:Error
  a688447... rsvg_get_input_stream_for_loading(): Port to Rust
  dca518f... create_node_and_register_id(): Renamed from rsvg_load_new_n
  78f2048... create_node.rs: Renamed from load.rs
  89ce985... Audit for "href" vs. "uri" in function prototypes
  69491d6... rsvg_acquire_gvfs_stream(): Don't resolve relative files he
  8b01a94... rsvg_acquire_gvfs_data: Don't resolve relative files here; 
  e928530... Remove superfluous use of g_propagate_error()
  87d537e... Remove superfluous checks
  3704939... Merge branch 'xinclude-error-handling'