Add dynamic ajax delete for every menus

Ajax notify is now feed with json and have three datas:
text : Notification text
type : Notification type (color)
data : Data to parse
If json is malformed the message will be the entire text
(json conversion doesn't work for ajax notify)

Add phpboost for the collectors
phpboost give minimal niceness (-20) to php-cgi launch by collectors
This gives the ability to launch php-cgi as root to collectors but only to collectors

Collectors start and stop has been improved and refactored

This should probably be disable for less elevated users

Notify using gntp protocol (this works on pretty much anywhere)
But you need to know the ip address and validate it from the client
Each growl client can be a node to others clients

Datas can only be send if SERVER remote_addr is not set
This is only the case when a script is execute in local (without lighttpd)