revert LogWithMetadata change

ethereum/graphql/src/main/java/tech/pegasys/pantheon/ethereum/graphql/internal/LogWithMetadata.java

@@ -54,6 +54,8 @@ public class LogWithMetadata {
     this.removed = removed;
   }
 
+  // The index of this log within the entire ordered list of logs associated with the block this log
+  // belongs to.
   public int getLogIndex() {
     return logIndex;
   }
@@ -74,7 +76,7 @@ public int getTransactionIndex() {
     return transactionIndex;
   }
 
-  public Address getLogger() {
+  public Address getAddress() {
     return address;
   }
 

ethereum/graphql/src/main/java/tech/pegasys/pantheon/ethereum/graphql/internal/pojoadapter/LogAdapter.java

@@ -68,6 +68,6 @@ public Optional<AccountAdapter> getAccount(final DataFetchingEnvironment environ
 
     return query
         .getWorldState(blockNumber)
-        .map(ws -> new AccountAdapter(ws.get(logWithMetadata.getLogger())));
+        .map(ws -> new AccountAdapter(ws.get(logWithMetadata.getAddress())));
   }
 }