relocate and rename Storage.js. implement a simple, non-persistent in memory datastore for those who'd rather not bother with mongodb. Continue to default to previous values.

storage/amnesia.js

@@ -0,0 +1,48 @@
+console.log("Loading amnesiadb. This is a horrible idea in production, as data *will not* persist\n");
+
+/*
+    As the comment says, this module does nothing to make your data persist
+    across sessions. If your process crashes for any reason, all pads will die.
+
+    This might be useful if you want to debug other parts of the codebase, if
+    you want to test out cryptpad without installing mongodb locally, or if
+    you don't want to rely on a remote db like the one at mongolab.com.
+
+    Maybe you just like the idea of a forgetful pad? To use this module, edit
+    config.js to include a directive `storage: './storage/amnesia'
+
+    Enjoy!
+*/
+
+var db=[],
+    index=0;
+
+var insert = function(channelName, content, cb){
+    var val = {
+        id:index++,
+        chan: channelName,
+        msg: content,
+        time: new Date().getTime(),
+    };
+    db.push(val);
+    cb();
+};
+
+var getMessages = function(channelName, cb){
+    db.sort(function(a,b){
+        return a.id - b.id;
+    });
+    db.filter(function(val){
+        return val.chan == channelName;
+    }).forEach(function(doc){
+        console.log(doc);
+        cb(doc.msg);
+    });
+};
+
+module.exports.create = function(conf, cb){
+    cb({
+        message: insert,
+        getMessages: getMessages,
+    });
+};