Mark images as not translatable to keep them off translators radar
Updated Brazilian Portuguese translation
Updated Czech translation
Updated French translation
doap: update URLs
[l10n] Update Catalan translation
Updated Spanish translation
Add initial installed tests
Install tests using --enable-installed-tests switch
build: include m4 in ACLOCAL_AMFLAGS
Updated Hungarian translation
Fix a typo in the Hungarian help translation
tests: install tests correctly when builddir != srcdir
tests: add uninstall hook
Ensure libtool files are ignored and cleanable

We are now using libtool for installed tests.
Fix failing test-case in factorial of reals.

Due to the bug-fix in libc, the newer setups returns different value for
tgamma (), which is more accurate.
validate returned iterator before passing to get_buffer

This avoids crashing in get_buffer when get_iter returns empty iter.
Unfortunately get_iter doesn't return any indications if it
succeded (and filled the passed reference with useful information)
or failed (and didn't touch the references iter).
An improvement of the gtksourceview API might be useful here.
For now, work around this by knowing that vala will create an
empty iter used as reference to get_iter and then compare it
against another empty iter to know if get_iter succeded or failed.

https://bugzilla.gnome.org/show_bug.cgi?id=727250
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742840
Modernize option parsing

Use the new GApplication option parsing
Update valac 0.24 for string-parsing modernization
Depend on GTK+ 3.11.6

For GtkPopover, including integration with GtkMenuModel

https://bugzilla.gnome.org/show_bug.cgi?id=724480