Merge branch 'add_ci' into 'master'

Add ci

See merge request dskoll/remind!2

.gitlab-ci.yml

@@ -0,0 +1,13 @@
+tests:
+  image: 'debian:stable-slim'
+  before_script:
+    - apt update && apt-get -y install gcc make
+    - useradd --create-home testuser
+    - chown -R testuser .
+    - chmod -R go-w .
+  script:
+    - LANG=C.UTF-8 su testuser -c 'make test'
+  artifacts:
+    when: always
+    paths:
+      - tests/test.out

Makefile

@@ -39,7 +39,7 @@ install-stripped:
 	@$(MAKE) -C rem2html install
 	@$(MAKE) -C rem2pdf -f Makefile.top install INSTALL_BASE=$(INSTALL_BASE)
 
-test:
+test: all
 	@$(MAKE) -C src -s test
 
 distclean: clean