Deprecate various classes

Author: ashawley

shared/src/main/scala/scala/xml/dtd/ContentModelParser.scala

@@ -12,6 +12,7 @@ package dtd
 
 /** Parser for regexps (content models in DTD element declarations) */
 
+@deprecated("This object will be removed", "1.3.0")
 object ContentModelParser extends Scanner { // a bit too permissive concerning #PCDATA
   import ContentModel._
 

shared/src/main/scala/scala/xml/dtd/ElementValidator.scala

@@ -23,6 +23,7 @@ import impl._
  * validate children and/or attributes of an element
  *  exceptions are created but not thrown.
  */
+@deprecated("This class will be removed", "1.3.0")
 class ElementValidator() extends Function1[Node, Boolean] {
 
   private var exc: List[ValidationException] = Nil

shared/src/main/scala/scala/xml/dtd/Scanner.scala

@@ -16,6 +16,7 @@ import scala.collection.Seq
  * Scanner for regexps (content models in DTD element declarations)
  *  todo: cleanup
  */
+@deprecated("This class will be removed", "1.3.0")
 class Scanner extends Tokens with parsing.TokenTests {
 
   final val ENDCH = '\u0000'

shared/src/main/scala/scala/xml/factory/Binder.scala

@@ -15,6 +15,7 @@ import parsing.ValidatingMarkupHandler
 /**
  *  @author Burak Emir
  */
+@deprecated("This class will be removed", "1.3.0")
 abstract class Binder(val preserveWS: Boolean) extends ValidatingMarkupHandler {
 
   var result: NodeBuffer = new NodeBuffer()

shared/src/main/scala/scala/xml/parsing/ValidatingMarkupHandler.scala

@@ -12,6 +12,7 @@ package parsing
 
 import scala.xml.dtd._
 
+@deprecated("This class will be removed", "1.3.0")
 abstract class ValidatingMarkupHandler extends MarkupHandler {
 
   var rootLabel: String = _