Add minimal travis support.

Add minimal travis.yml file that builds and packages falco. No actual
tests yet.

test/falco_trace_regression.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+set -eu
+
+SCRIPT=$(readlink -f $0)
+BASEDIR=$(dirname $SCRIPT)
+
+FALCO=$1
+
+# For now, simply ensure that falco can run without errors.
+FALCO_CMDLINE="$FALCO -c $BASEDIR/../falco.yaml -r $BASEDIR/../rules/falco_rules.yaml"
+echo "Running falco: $FALCO_CMDLINE"
+$FALCO_CMDLINE > $BASEDIR/falco.log 2>&1 &
+FALCO_PID=$!
+echo "Falco started, pid $FALCO_PID"
+sleep 10
+if kill -0 $FALCO_PID > /dev/null 2>&1; then
+    echo "Falco ran successfully"
+    kill $FALCO_PID
+    ret=0
+else
+    echo "Falco did not start successfully. Full program output:"
+    cat $BASEDIR/falco.log
+    ret=1
+fi
+
+exit $ret