added <functional> to base.h
added <functional> to base.h

sebjameswml/node.native,chenmoshushi/node.native,supamii/QttpServer,supamii/QttpServer,d5/node.native,8l/node.native,takano32/node.native,8l/node.native,d5/node.native,chenmoshushi/node.native,supamii/libuv.qt,mattn/node.native,supamii/QttpServer,chenmoshushi/node.native,nodenative/nodenative,supamii/libuv.qt,sebjameswml/node.native,nodenative/nodenative,sebjameswml/node.native,8l/node.native,mattn/node.native,supamii/QttpServer,supamii/libuv.qt,takano32/node.native,nodenative/nodenative,supamii/libuv.qt,supamii/QttpServer,supamii/QttpServer,d5/node.native