[librsvg] (25 commits) Non-fast-forward update to branch cargo-c

[Federico Mena Quintero <federico src gnome org>]

The branch 'cargo-c' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  1c4c7ed... Cargo.toml - add cargo-c metadata
  2eb5f42... Use rsvg-2 for the capi.library name
  69a5edf... configure.ac: check for cargo-cbuild
  02bc18e... Make cargo-c emit Cflags in the .pc file
  f2fd37e... Update to use cargo-c 0.9
  da6fb1a... Extremely basic script to test the cargo-c artifacts
  6f7cdcf... Override the name of the .pc file
  aaf54b1... Update COMPILING.md for cargo-c

Commits added to the branch:

  d8f3bc2... (#747) Add "auto" for image element width/height (*)
  ed61932... Merge branch 'madds-image-auto-length' into 'master' (*)
  90a8f2e... rsvg-convert: test that unsupported units yield the correct (*)
  4aef73d... rsvg-convert: Test error message for invalid lengths (*)
  4a111b6... rsvg-convert: Test that the export-id option indeed accepts (*)
  a4c4824... rsvg-convert: Test that invalid language tags yield an erro (*)
  e1d8d5a... Iri does not need to implement Default (*)
  8c28136... Test when an image element has no href attribute (*)
  4af5940... rsvg-convert: Tests for invalid zoom factors (*)
  fc0dcc9... Merge branch 'test-coverage' into 'master' (*)
  0370d84... rsvg-convert.rs: Fix building on Windows (*)
  edb728d... Cargo.toml: Make some more packages optional on Windows (*)
  869fbf5... win32: Bring back the librsvg.symbols (*)
  f0b53a2... NMake Makefiles: Fix and revamp (*)
  f7d39d4... win32: Update README.txt (*)
  169ab91... Merge branch 'master.msvc' into 'master' (*)
  b9cd200... Cargo.toml - add cargo-c metadata
  d8ca75f... Use rsvg-2 for the capi.library name
  d9e1537... configure.ac: check for cargo-cbuild
  47bf1c9... Make cargo-c emit Cflags in the .pc file
  e05623d... Update to use cargo-c 0.9
  c6215dc... Extremely basic script to test the cargo-c artifacts
  b979878... Override the name of the .pc file
  90e68f3... Update COMPILING.md for cargo-c
  bc17298... configure.ac: Check the cargo-c version to be at least 0.9

(*) This commit already existed in another branch; no separate mail sent