PeerFinder work and refactoring:

* Implement PeerFinder business logic.
* Support fixed peers (including DNS support).
* Add journal support to Peer and Peers.
* Refactor PeerDoor support.
* Tidy up Peers and eliminate connection functionality and timers.
* Refactor Peer interface and add journal support.
* Allow construction of incoming Peer using an existing socket.
* Remove TESTNET support.
* Allow connections from/to cluster peers without consuming slots
* Misc. cleanups.

src/ripple_basics/utility/StringUtilities.cpp

@@ -271,14 +271,6 @@ bool parseQuality (const std::string& strSource, uint32& uQuality)
     return !!uQuality;
 }
 
-std::string addressToString (void const* address)
-{
-    // VFALCO TODO Clean this up, use uintptr_t and only produce a 32 bit
-    //             output on 32 bit platforms
-    //
-    return strHex (static_cast <char const*> (address) - static_cast <char const*> (0));
-}
-
 StringPairArray parseDelimitedKeyValueString (String parameters, beast_wchar delimiter)
 {
     StringPairArray keyValues;