Updated shared-mime-info to 1.7.

shared-mime-info 1.7 (2016-09-05)
* Add mime-types for a number of video games systems ROMS
  (Atari 7800, Atari 2600, Neo Geo Pocket, Sega CD/Mega-CD, Game Boy Color,
  Genesis 32X, Sega SG-1000, Sega Game Gear, Sega Pico)
* Add mime-type for .tar.lz and tar.lz4 archives
* Add mime-type for Jupyter Notebook files
* Add Flatpak mime-types and add compatibility for xdg-app ones
* Add *.dib glob to BMP images
* Use official IANA mime-types for WMF and EMF images
* Add application/raml+yaml mime-type
* Add GPX mimetypes as found in the wild
* Add application/vnd.squashfs and application/vnd.snap mime-types
* Add mime-type for IGES documents
* Add mime-types for Sass CSS pre-processor files
* Add mime-type for Twig templates
* Add alias application/nappdf for application/pdf
* Add mimetype for AppImage
* Add application/x-bsdiff mime-type
* Add Gherkin feature specifications mime-type
* Use official IANA registered type for application/vnd.chess-pgn
* Use new IANA registered type for application/geo+json
* Use official IANA registered type for application/vnd.comicbook+zip
* Use official IANA registered type for application/vnd.rar
* Use official IANA registered type for application/vnd.framemaker
* Improve VRML mime-type
* Better MPEG-2 TS magic
* Better magic for 669 tracker MOD files
* Fix misdetection of zip files as their content
* Fix multi-page DjVu detection by file
* Fix TGA magic detection
* Fixes related to AMR audio files
* Remove "*.sg" glob for Sega Master System ROM types

(wiz)