Move all nodes into core subdirectory

This makes it easier to distinguish core nodes from those added later

nodes/core/storage/50-file.js

@@ -0,0 +1,47 @@
+/**
+ * Copyright 2013 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var RED = require(process.env.NODE_RED_HOME+"/red/red");
+var fs = require("fs");
+
+function FileNode(n) {
+	RED.nodes.createNode(this,n);
+
+	this.filename = n.filename;
+	this.appendNewline = n.appendNewline;
+	this.overwriteFile = n.overwriteFile;
+	var node = this;
+	this.on("input",function(msg) {
+		var data = msg.payload;
+		if (this.appendNewline) {
+			data += "\n";
+		}
+		if (this.overwriteFile) {
+			fs.writeFile(this.filename, data, function (err) {
+				if (err) node.warn('Failed to write to file : '+err);
+				//console.log('Message written to file',this.filename);
+			});
+		}
+		else {
+			fs.appendFile(this.filename, data, function (err) {
+				if (err) node.warn('Failed to append to file : '+err);
+				//console.log('Message appended to file',this.filename);
+			});
+		}
+	});
+}
+
+RED.nodes.registerType("file",FileNode);