Updated Hebrew translation
Updated Hebrew properties translation
Updated Kazakh translation
trivial: fix typo in docs of gtk_css_provider_to_string
autogen.sh: fail faster/clearer if g-i not found

GOBJECT_INTROSPECTION_CHECK macro can be missing if introspection
is not installed, so this way the following error is prevented:

"gtk/Makefile.am:1324: error: HAVE_INTROSPECTION does not appear
in AM_CONDITIONAL"

https://bugzilla.gnome.org/show_bug.cgi?id=723438
trivial: fix typo in docs of gtk_css_provider_to_string
Updated Lithuanian translation
Updated Polish translation
printbackends: Fix make dist
Updated Thai translation
Revert "GtkEntryCompletion: fix warning"

This reverts commit 2f0c610c35215229e53aac4c37fdea49e25f3742.
Revert "gtk_entry_completion_get_cells: revert returning NULL"

This reverts commit a9a6fb045a0faedb30ffdad4ed979f380c483ebd.
Revert "GtkEntryCompletion: call cell_area()->clear()"

This reverts commit 3c2829713463228094d66170564a4d6d7c31c245.
Revert "gtk_entry_completion_set_text_column: reuse old renderer"

This reverts commit f6a0debdd9d4f90b9d6b54c263b10926ba530c7e.
Revert "GtkEntryCompletion: call setter for "text-column""

This reverts commit 9761a966d8ffda724226a21022a42ce40932b443.
file-chooser: emit selection-changed when location entry changes too

https://bugzilla.gnome.org/show_bug.cgi?id=547988
testdialogs: Add message dialog examples

Related to
https://bugzilla.gnome.org/show_bug.cgi?id=723668
Updated Galician translations
Updated GAlician translations