add compatibility for some versions of gcc and add sqlite3.h to configure script

src/statement.h

@@ -7,7 +7,8 @@
 
 #include "database.h"
 
-#include <typeinfo>
+#include <cstdlib>
+#include <cstring>
 #include <string>
 #include <queue>
 #include <vector>

wscript

@@ -13,6 +13,8 @@ def set_options(opt):
 def configure(conf):
   conf.check_tool("compiler_cxx")
   conf.check_tool("node_addon")
+  if not conf.check_cxx(header_name='sqlite3.h'):
+      conf.fatal("Missing sqlite3.h header file.")
 
 def build(bld):
   obj = bld.new_task_gen("cxx", "shlib", "node_addon")