Except when interacting with boost, use std::function and std::bind

when C++11 is available. See: http://stackoverflow.com/questions/14617835

src/cpp/ripple/ValidationCollection.cpp

@@ -297,7 +297,7 @@ void ValidationCollection::condWrite()
 		return;
 	mWriting = true;
 	theApp->getJobQueue().addJob(jtWRITE, "ValidationCollection::doWrite",
-		boost::bind(&ValidationCollection::doWrite, this, _1));
+		BIND_TYPE(&ValidationCollection::doWrite, this, P_1));
 }
 
 void ValidationCollection::doWrite(Job&)