Exporting a World-Map

This patch adds the world map exporter.

- add worldmap-save.c that writes the html to the file
- use Google maps v3 API to put the place marks on the map
- add worldmap-options.h to contain some settings for the JS which will
  make it easier for those to be changed
- add save HTML action in the mainwindow user interface

Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

worldmap-save.h

@@ -0,0 +1,15 @@
+#ifndef WORLDMAP_SAVE_H
+#define WORLDMAP_SAVE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void export_worldmap_HTML(const char* x);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif