build: fix FTBFS on GCC 6.2

I'm not surprised that GCC 6 doesn't let me send an ostream ref to itself,
even inside an uninstantiated template specialization.  I am a little
surprised I was trying to, and 4.9 let me get away with it.

It's 2016.  auto_ptr is deprecated now.

Some things were including vector that don't any more.

https://github.com/Zygo/bees/issues/1

lib/chatter.cc

@@ -15,7 +15,7 @@
 namespace crucible {
 	using namespace std;
 
-	static auto_ptr<set<string>> chatter_names;
+	static shared_ptr<set<string>> chatter_names;
 	static const char *SPACETAB = " \t";
 
 	static