Move ConfigDocument and ConfigNode into a "parser" package

This should cut down on people wasting time on these when they
are looking for the regular config API; they are for a narrower
use-case.

config/src/main/java/com/typesafe/config/impl/AbstractConfigNode.java

@@ -3,7 +3,7 @@
  */
 package com.typesafe.config.impl;
 
-import com.typesafe.config.ConfigNode;
+import com.typesafe.config.parser.ConfigNode;
 import java.util.Collection;
 
 abstract class AbstractConfigNode implements ConfigNode {

config/src/main/java/com/typesafe/config/impl/Parseable.java

@@ -22,6 +22,7 @@ import java.net.URLConnection;
 import java.util.*;
 
 import com.typesafe.config.*;
+import com.typesafe.config.parser.*;
 
 /**
  * Internal implementation detail, not ABI stable, do not touch.

config/src/main/java/com/typesafe/config/impl/SimpleConfigDocument.java

@@ -1,6 +1,6 @@
 package com.typesafe.config.impl;
 
-import com.typesafe.config.ConfigDocument;
+import com.typesafe.config.parser.ConfigDocument;
 import com.typesafe.config.ConfigException;
 import com.typesafe.config.ConfigParseOptions;
 import com.typesafe.config.ConfigValue;

config/src/main/java/com/typesafe/config/parser/ConfigDocument.java

@@ -1,4 +1,7 @@
-package com.typesafe.config;
+package com.typesafe.config.parser;
+
+import com.typesafe.config.ConfigParseOptions;
+import com.typesafe.config.ConfigValue;
 
 /**
  * An object parsed from the original input text, which can be used to

config/src/main/java/com/typesafe/config/parser/ConfigDocumentFactory.java

@@ -1,4 +1,6 @@
-package com.typesafe.config;
+package com.typesafe.config.parser;
+
+import com.typesafe.config.ConfigParseOptions;
 
 import com.typesafe.config.impl.ConfigImpl;
 import com.typesafe.config.impl.Parseable;

config/src/main/java/com/typesafe/config/parser/ConfigNode.java

@@ -1,7 +1,7 @@
 /**
  *   Copyright (C) 2015 Typesafe Inc. <http://typesafe.com>
  */
-package com.typesafe.config;
+package com.typesafe.config.parser;
 
 /**
  * An immutable node that makes up the ConfigDocument AST, and which can be

config/src/test/scala/com/typesafe/config/impl/ConfigDocumentTest.scala

@@ -5,6 +5,7 @@ import java.nio.charset.StandardCharsets
 import java.nio.file.{ Paths, Files }
 
 import com.typesafe.config._
+import com.typesafe.config.parser._
 import org.junit.Assert._
 import org.junit.Test