Attempt to make Bongo compile on older libical apis

src/libs/msgapi/msgcollector.c

@@ -35,7 +35,7 @@
 #include <nmlib.h>
 #include <bongocal-raw.h>
 
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 
 #include <curl/curl.h>
 #include "msghttp.h"

src/libs/msgapi/msgdate.c

@@ -28,7 +28,7 @@
 #include "msgapip.h"
 
 //#include <libical/icaltime.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 #include "bongoutil.h"
 
 #define LAST 5