libvirt: Add git repository to meta attributes
libvirt: Assume maintainership
silver-searcher: update to 0.21.0
gtk+3 core stack: update to 3.12
liferea: maintenance update
fix evaluation since 34301c8
Merge master into x-updates
xorg.xf86-video-vmware: minor update

Patch no longer needed to build.
Add zotero 4.0.19 (close #2043)

@vcunat simplied the expression a little.
libgsf: maintenance update to fix build with new glib
haskell-keter: update to version 1.2.1
haskell-attempt: update to version 0.4.0.1
haskell-authenticate: update to version 1.3.2.7
haskell-conduit-combinators: update to version 0.2.3.1
haskell-cryptohash: update to version 0.11.4
haskell-failure: update to version 0.2.0.2
haskell-hakyll: update to version 4.5.0.0
haskell-html-conduit: update to version 1.1.0.3
haskell-http-client: update to version 0.2.2.4
haskell-http-reverse-proxy: update to version 0.3.1.2