Add more debug.

Signed-off-by: Eric Wang <skygragon@gmail.com>

Author: skygragon

lib/core.js

@@ -34,6 +34,7 @@ core.getProblems = function(cb) {
     return cb(null, problems);
   }
 
+  log.debug('running getProblems');
   var user = this.getUser();
   client.getProblems(user, function(e, problems) {
     if (e) return cb(e);
@@ -65,6 +66,7 @@ core.getProblem = function(keyword, cb) {
       return cb(null, problem);
     }
 
+    log.debug('running getProblem');
     client.getProblem(core.getUser(), problem, function(e, problem) {
       if (e) return cb(e);
 
@@ -75,18 +77,22 @@ core.getProblem = function(keyword, cb) {
 };
 
 core.getSubmissions = function(problem, cb) {
+  log.debug('running getSubmissions');
   client.getSubmissions(problem, cb);
 };
 
 core.getSubmission = function(submission, cb) {
+  log.debug('running getSubmission');
   client.getSubmission(submission, cb);
 };
 
 core.testProblem = function(problem, cb) {
+  log.debug('running testProblem');
   client.testProblem(problem, cb);
 };
 
 core.submitProblem = function(problem, cb) {
+  log.debug('running submitProblem');
   client.submitProblem(problem, cb);
 };
 
@@ -113,6 +119,7 @@ core.starProblem = function(problem, starred, cb) {
     return cb(null, starred);
   }
 
+  log.debug('running starProblem');
   client.starProblem(this.getUser(), problem, starred, cb);
 };
 
@@ -151,6 +158,7 @@ core.login = function(user, cb) {
     if (e) return cb(e);
 
     saveUser(user);
+    log.debug('running getFavorites');
     client.getFavorites(function(e, favorites) {
       if (e) return cb(e);