Add initial Travis CI support

* .travis.yml: New file.
* travis-ci.sh: Likewise.
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..2ce9f03
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,22 @@
+language: c
+
+compiler:
+  - gcc
+
+dist: trusty
+
+script: ./travis-ci.sh
+
+sudo: required
+
+addons:
+  apt:
+    packages:
+    - gcc-multilib
+    - libacl1-dev
+
+env:
+  global:
+    - ENABLE_GCC_WERROR="--enable-gcc-Werror"
+    - SLEEP_A_BIT="sleep 0.1"
+    - VERBOSE="1"