build: switch to meson buildsystem

We build the project with 'meson' now instead of using custom
configure script + GNU Makefiles. To build the project, go to
the project root directory and use the following commands:

Building:
meson build
cd build
ninja

Update Language Files:
ninja shopsystem-pot
ninja shopsystem-update-po

Install:
DESTDIR=./tmp ninja install

4 files changed, 14 insertions, 0 deletions

diff --git a/data/sounds/system/LICENSE b/data/sounds/system/LICENSE
new file mode 100644
index 0000000..db764a9
--- /dev/null
+++ b/data/sounds/system/LICENSE
@@ -0,0 +1,14 @@
+Files: error.ogg
+Source: http://www.freesound.org/people/Corsica_S/sounds/56097/
+Copyright: 2008, Corsica_S
+License: CC-BY-3.0
+
+Files: shutdown.ogg
+Source: http://www.freesound.org/people/Corsica_S/sounds/104719/
+Copyright: 2010, Corsica_S
+License: CC-BY-3.0
+
+Files: startup.ogg
+Source: http://www.freesound.org/people/Corsica_S/sounds/83342/
+Copyright: 2010, Corsica_S
+License: CC-BY-3.0
diff --git a/data/sounds/system/error.ogg b/data/sounds/system/error.ogg
new file mode 100644
index 0000000..f34f375
--- /dev/null
+++ b/data/sounds/system/error.ogg
diff --git a/data/sounds/system/shutdown.ogg b/data/sounds/system/shutdown.ogg
new file mode 100644
index 0000000..2560efd
--- /dev/null
+++ b/data/sounds/system/shutdown.ogg
diff --git a/data/sounds/system/startup.ogg b/data/sounds/system/startup.ogg
new file mode 100644
index 0000000..31649ff
--- /dev/null
+++ b/data/sounds/system/startup.ogg