update tinyMCE 4.0.11

Signed-off-by: Patrick <support@flatcore.de>
minor optical changes

Backend and Frontend (Theme blucent)

Signed-off-by: Patrick <support@flatcore.de>
add filter by user status

Signed-off-by: Patrick <support@flatcore.de>
Convert special characters when loading stored snippets

Signed-off-by: Patrick <support@flatcore.de>