I've made some changes to it.

Hello, bowen,

Thanks for your work, it's so nice to sync blogs from octopress to other blogs.

Based on your job, I've made some modification, following is what I've made.
1.Make password as a para(to avoid keeping such a secret thing in disk); 
2.Make all configuration into _config.yml;
3.Change the path of sync_post.rb from _custom/sync_post.rb to plugins/sync_post.rb.
4.And I've removed all other things from the branch. 

Wish that will be helpful.

My next step is to add sync_all_post to my branch, do you enjoy that idea?

Thanks again :)