better error messages

lib/strategy/EnrichClientFromRemoteConfigStrategy.js

@@ -17,8 +17,14 @@ function EnrichClientFromRemoteConfigStrategy (clientFactory) {
 EnrichClientFromRemoteConfigStrategy.prototype._resolveApplicationByHref = function (client, config, href, cb) {
   client.getApplication(href, function (err, app) {
     if (err) {
-      // TODO: If 404 then give the user a more valuable error, e.g. stating that the application doesn't exist.
-      cb(err);
+      if(err.status === 404){
+        cb(new Error(
+          'The provided application could not be found.\n\n' +
+          'The provided application href was: ' + href + '\n'
+        ));
+      }else{
+        cb(err);
+      }
     } else {
       config.application = app;
       cb(null, app);
@@ -38,7 +44,10 @@ EnrichClientFromRemoteConfigStrategy.prototype._resolveApplicationByName = funct
       cb(name === app.name);
     }, function (app) {
       if (!app) {
-        cb(new Error('Application not found: "' + name + '"'));
+        cb(new Error(
+          'The provided application could not be found.\n\n' +
+          'The provided application name was: ' + name + '\n'
+        ));
       } else {
         config.application = app;
         cb(null, app);
@@ -63,7 +72,10 @@ EnrichClientFromRemoteConfigStrategy.prototype._resolveDefaultApplication = func
       config.application = userApplications[0];
       cb(null, userApplications[0]);
     } else {
-      cb(new Error('No application found.'));
+      cb(new Error(
+        'Could not automatically resolve a Stormpath Application.  \n\n'+
+        'Please specify your Stormpath Application in your configuration.\n'
+      ));
     }
   });
 };