Ignacio Casal Quinteiro ported devhelp to GtkHeaderBar, GtkSearchBar,
and more.
Fixed bugs:
- #700588, Error regarding gsetting schema when gsettings-data-convert
starts
Updated translations: it, lt, pt_BR, zh_HK, zh_TW
Many thanks to all contributors: Milo Casagrande, Ignacio Casal Quinteiro,
Rafael Ferreira, Piotr Drąg, Baptiste Mille-Mathias, Aurimas Černius,
Chao-Hsiung Liao
