Remove RippleAddress:

The RippleAddress class was used to represent a number of fundamentally
different types: account public keys, account secret keys, node public
keys, node secret keys, seeds and generators.

The class is replaced by the following types:
* PublicKey for account and node public keys
* SecretKey for account and node private keys
* Generator for generating secp256k1 accounts
* Seed for account, node and generator seeds

src/ripple/rpc/impl/Utilities.cpp

@@ -26,6 +26,9 @@
 #include <ripple/rpc/Context.h>
 #include <boost/algorithm/string.hpp>
 #include <boost/format.hpp>
+#include <algorithm>
+#include <iterator>
+#include <string>
 
 namespace ripple {
 namespace RPC {