[SoC] Mentors: please sign up with Google

[Giovanni Corriga]

Hi all,

this message is for those of you who still haven't signed up as mentors 
on the GSoC Dashboard.

Please head up to http://code.google.com/soc/mentor_step1.html and 
follow the steps from there. As soon as you complete the registration 
process, I'll be able to authorize you.

	Ciao,

		Giovanni