Updated Norwegian bokmål translation
Updated Norwegian bokmål translation
Tajik translation updated
Updated Czech translation
set up build system for user help

https://bugzilla.gnome.org/show_bug.cgi?id=724818
Updated Brazilian Portuguese translation
Fixed gettext inner ngettext
Fixed gettext inner ngettext
Fixed gettext inner ngettext
Updated Czech translation
Updated Brazilian Portuguese translation
Updated Hebrew translation
Updated Chinese (China) translation
data/app-menu.ui modified for user help

application.py modified for introducing user-help

https://bugzilla.gnome.org/show_bug.cgi?id=724908