upgpkg: python-matplotlib 1.4.0-3

- fix dependency on libxkbcommon-x11, required by the default Qt5Agg backend (FS#42307)
- add optdepend on python{,2}-pillow for reading/writing jpeg/bmp/tiff files (FS#42316)


git-svn-id: file:///srv/repos/svn-community/svn@120552 9fca08f4-af9d-4005-b8df-a31f2cc04f65
archrelease: copy trunk to community-i686, community-x86_64

git-svn-id: file:///srv/repos/svn-community/svn@120553 9fca08f4-af9d-4005-b8df-a31f2cc04f65