Update licences (#33)

- Add gdk-pixbuf (LGPLv2.1) and orc (BSD-like) licenses.
- Remove libuuid licence (no longer required by fontconfig).
- Use secure URLs where possible.
- libcroco is also used on macOS

Author: kleisauke

README.md

@@ -46,30 +46,31 @@ all of which are compatible with the Apache 2.0 Licence.
 Use of libraries under the terms of the LGPLv3 is via the
 "any later version" clause of the LGPLv2 or LGPLv2.1.
 
-| Library       | Used under the terms of                                                                                  |
-|---------------|----------------------------------------------------------------------------------------------------------|
-| cairo         | Mozilla Public License 2.0                                                                               |
-| expat         | MIT Licence                                                                                              |
-| fontconfig    | [fontconfig Licence](https://cgit.freedesktop.org/fontconfig/tree/COPYING) (BSD-like)                    |
-| freetype      | [freetype Licence](http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/docs/FTL.TXT) (BSD-like) |
-| fribidi       | LGPLv3                                                                                                   |
-| gettext       | LGPLv3                                                                                                   |
-| giflib        | MIT Licence                                                                                              |
-| glib          | LGPLv3                                                                                                   |
-| harfbuzz      | MIT Licence                                                                                              |
-| lcms          | MIT Licence                                                                                              |
-| libcroco      | LGPLv3 (Windows only)                                                                                    |
-| libexif       | LGPLv3                                                                                                   |
-| libffi        | MIT Licence                                                                                              |
-| libgsf        | LGPLv3                                                                                                   |
-| libjpeg-turbo | [zlib License, IJG License](https://github.com/libjpeg-turbo/libjpeg-turbo/blob/master/LICENSE.md)       |
-| libpng        | [libpng License](http://www.libpng.org/pub/png/src/libpng-LICENSE.txt)                                   |
-| librsvg       | LGPLv3                                                                                                   |
-| libtiff       | [libtiff License](http://www.libtiff.org/misc.html) (BSD-like)                                           |
-| libuuid       | New BSD License                                                                                          |
-| libvips       | LGPLv3                                                                                                   |
-| libwebp       | New BSD License                                                                                          |
-| libxml2       | MIT Licence                                                                                              |
-| pango         | LGPLv3                                                                                                   |
-| pixman        | MIT Licence                                                                                              |
-| zlib          | [zlib Licence](https://github.com/madler/zlib/blob/master/zlib.h)                                        |
+| Library       | Used under the terms of                                                                                   |
+|---------------|-----------------------------------------------------------------------------------------------------------|
+| cairo         | Mozilla Public License 2.0                                                                                |
+| expat         | MIT Licence                                                                                               |
+| fontconfig    | [fontconfig Licence](https://gitlab.freedesktop.org/fontconfig/fontconfig/blob/master/COPYING) (BSD-like) |
+| freetype      | [freetype Licence](https://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/docs/FTL.TXT) (BSD-like) |
+| fribidi       | LGPLv3                                                                                                    |
+| gdk-pixbuf    | LGPLv3                                                                                                    |
+| gettext       | LGPLv3                                                                                                    |
+| giflib        | MIT Licence                                                                                               |
+| glib          | LGPLv3                                                                                                    |
+| harfbuzz      | MIT Licence                                                                                               |
+| lcms          | MIT Licence                                                                                               |
+| libcroco      | LGPLv3 (Windows / macOS only)                                                                             |
+| libexif       | LGPLv3                                                                                                    |
+| libffi        | MIT Licence                                                                                               |
+| libgsf        | LGPLv3                                                                                                    |
+| libjpeg-turbo | [zlib License, IJG License](https://github.com/libjpeg-turbo/libjpeg-turbo/blob/master/LICENSE.md)        |
+| libpng        | [libpng License](http://www.libpng.org/pub/png/src/libpng-LICENSE.txt)                                    |
+| librsvg       | LGPLv3                                                                                                    |
+| libtiff       | [libtiff License](https://libtiff.gitlab.io/libtiff/misc.html) (BSD-like)                                 |
+| libvips       | LGPLv3                                                                                                    |
+| libwebp       | New BSD License                                                                                           |
+| libxml2       | MIT Licence                                                                                               |
+| orc           | [orc License](https://gitlab.freedesktop.org/gstreamer/orc/blob/master/COPYING) (BSD-like)                |
+| pango         | LGPLv3                                                                                                    |
+| pixman        | MIT Licence                                                                                               |
+| zlib          | [zlib Licence](https://github.com/madler/zlib/blob/master/zlib.h)                                         |