Let's see if travis is fixed

src/limbo/serialize/text_archive.hpp

@@ -2,6 +2,7 @@
 #include <iostream>
 #include <sstream>
 #include <string>
+
 // Quick hack for definition of 'I' in <complex.h>
 #undef I
 #include <boost/filesystem.hpp>

src/tests/test_serialize.cpp

@@ -49,7 +49,10 @@
 #include <cstring>
 #include <fstream>
 
+// Quick hack for definition of 'I' in <complex.h>
+#undef I
 #include <boost/test/unit_test.hpp>
+
 #include <limbo/model/gp.hpp>
 #include <limbo/serialize/text_archive.hpp>