fix: getter/setter of revision field to CouchDbDocument

mark it as deprecated

Author: PinalGajera

org.ektorp/src/main/java/org/ektorp/support/CouchDbDocument.java

@@ -24,7 +24,6 @@ public class CouchDbDocument extends CouchdbDocument implements Serializable {
 
 	private static final long serialVersionUID = 1L;
 	private String id;
-	private String revision;
 	private Map<String, Attachment> attachments;
 	private List<String> conflicts;
 	private Revisions revisions;
@@ -47,22 +46,20 @@ public void setId(String s) {
 	}
 
 
+	@Deprecated
 	@JsonProperty("_rev")
 	public String getRevision() {
-		return revision;
+		return super.getRev();
 	}
 
+	@Deprecated
 	@JsonProperty("_rev")
 	public void setRevision(String s) {
-		// no empty strings thanks
-		if (s != null && s.length() == 0) {
-			return;
-		}
-		this.revision = s;
+		super.setRev(s);
 	}
 	@JsonIgnore
 	public boolean isNew() {
-		return revision == null;
+		return super.getRev() == null;
 	}
 
 	@JsonProperty(ATTACHMENTS_NAME)