update tag, Facebook page

still bug in tag ajax
Revert bc61e95..a37cd70

This rolls back to commit bc61e957b27b54099f69fe096ceb7ed7743ef1b3.
Revert a37cd70..3667386

This rolls back to commit a37cd70029fa80f23f3dfac309ae2af69713ed72.
update skin for tinymce,Facebook save tag list

text editor look beautiful now
minor update

next: finish Facebook function
add Facebook notification api test