[librsvg] (17 commits) ...Merge branch 'dont-reparse-style'

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  0db1a61... Start sketching a ParsedProperty enum
  b9bea14... Replace another .map_err() with .attribute() from Attribute
  839580d... Move the xml:lang and xml:space parsing to parse_presentati
  eb2fe3a... Parse style properties into a ParsedProperty
  c8e3980... parse_property(): Implement in terms of a parse_input() tha
  2ca25d3... Store an Attribute as the key in DeclarationList, not a Str
  cbb711f... Store a ParsedProperty in a Declaration, not a String value
  dc2f096... Remove parse_style_pair(); use set_style_pair_from_parsed_p
  6517fb0... Store the corresponding attribute in the Declaration
  7b75510... CssRules.add_declaration(): Renamed from define(); take a D
  df2f15f... Move Declaration to properties.rs
  2542ace... set_style_pair_from_parsed_property() - rename to set_prope
  25cc38c... Use ValueErrorKind::UnknownProperty instead of a funny Resu
  1bdbbb1... parse_attribute_value_into_parsed_property(): Take a csspar
  d06abc5... DeclParser: Basic implentation of cssparser::DeclarationPar
  db5786e... parse_style_declarations(): Use a cssparser::DeclarationLis
  3314534... Merge branch 'dont-reparse-style'