TinyMCE plugin updated to upstream version 4.0
Small fixes in Comments module.
Come corresponding changes in system.

System version 0.255
modules:
Blogs 0.042
Comments 0.006
Cron 0.004
HybridAuth 2.1.1-cs18
OAuth2 0.013
Static_pages 0.025
plugins:
Admin_default_theme 0.001
TinyMCE 4.0-cs1