[glib] (13 commits) ...Merge branch 'guri-gio' into 'master'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  3521763... uri: add some note about the API scope
  19c0db3... uri: improve some documentation about absolute URIs
  d625a29... uri: add a comment about temporary GUri construction
  44d4640... uri: rename absolute & relative uri_string to uri_ref
  82ad785... uri: change g_uri_is_valid() to check absolute URI
  034a4dc... gio: replace _g_uri_from_authority() with g_uri_join()
  a173a6f... gio: use g_uri_is_valid()
  6f419e7... gio: use g_uri_split_network() in g_network_address_parse_u
  1b6a053... gio: use g_uri_split_with_user() in save_userinfo()
  aa0b09e... gio: use g_uri_split_network() in g_simple_proxy_resolver_l
  dd0fae1... gio: remove _g_uri_parse_authority()
  0fea3d7... guri: add some IPv6 scope-id tests
  df8dc7f... Merge branch 'guri-gio' into 'master'