Cleanups:

* Remove obsolete config variables
* Reduce coupling
* Use C++11 ownership containers
* Use auto when it makes sense
* Detect edge-case in unit tests
* Reduce the number of LedgerEntrySet public members

src/ripple/module/data/protocol/RippleAddress.cpp

@@ -75,6 +75,17 @@ std::string RippleAddress::humanAddressType () const
 // NodePublic
 //
 
+uint160 Hash160 (Blob const& vch)
+{
+    uint256 hash1;
+    SHA256 (vch.data (), vch.size (), hash1.data ());
+
+    uint160 hash2;
+    RIPEMD160 (hash1.data (), hash1.size (), hash2.data ());
+
+    return hash2;
+}
+
 RippleAddress RippleAddress::createNodePublic (RippleAddress const& naSeed)
 {
     CKey            ckSeed (naSeed.getSeed ());