Run MaxCtrl test suite in the regression test suite

The MaxCtrl test suite is now a part of the regression test suite. The
cluster tests are expected to fail as that is yet to be implemented.

Also fixed the return value of TestConnections::ssh_maxscale.

maxscale-system-test/test_maxctrl.cpp

@@ -0,0 +1,26 @@
+/**
+ * Run MaxCtrl test suite on the MaxScale machine
+ */
+
+#include "testconnections.h"
+
+int main(int argc, char *argv[])
+{
+    TestConnections test(argc, argv);
+
+    test.copy_to_maxscale("test_maxctrl.sh", "~");
+
+    // TODO: Don't handle test dependencies in tests
+    test.tprintf("Installing NPM");
+    test.ssh_maxscale(true,"yum -y install epel-release;yum -y install npm;");
+
+    test.tprintf("Starting test");
+    test.verbose = true;
+    int rv = test.ssh_maxscale(false, "./test_maxctrl.sh");
+    test.verbose = false;
+
+    test.tprintf("Removing NPM");
+    test.ssh_maxscale(true, "yum -y remove npm epel-release");
+
+    return rv;
+}