abicheck.sh script has been changed to check the libdconfsettings
library from GSETTINGS_LIB environment variable. This helps when
checking the library in different locations.

'shebang' has also been added.

https://bugzilla.gnome.org/show_bug.cgi?id=784910

meson is a build system focused on speed an ease of use, which
helps speeding up the software development. This patch adds meson
support along autotools.

https://bugzilla.gnome.org/show_bug.cgi?id=784910

To avoid the burden of maintaining multiple build systems, this
patch removes autotools support.

https://bugzilla.gnome.org/show_bug.cgi?id=784910

I've verified this test is broken in the 0.24 release as well, so it's
not a regression in dconf itself.

This reverts commit ab2692a9.

I figure whoever cares for dconf in the future will probably want to
know that this test is broken.

The README file still shows information about the dconf editor,
which is no longer part of dconf, and also about the steps to
build dconf using autotools.

This patch removes any mention of dconf-editor and also replaces
the autotools' build steps for their meson's equivalents.

https://bugzilla.gnome.org/show_bug.cgi?id=784910

meson does not allow to build source code inside the source code
tree, for this reason there is no need for .gitignore files to
ignore built files.

This patch removes .gitignore files which are no longer needed.

https://bugzilla.gnome.org/show_bug.cgi?id=784910

Interestingly, it's a different failing test than last time. Yippee!

Update to upstream version '0.28.0'
with Debian dir 9fa7ecbc29dc0d2abf85394fefb33295fad4cdef