This is how I installed Gnome 3.12.2 on Trisquel 7 20140807 testing version.
It have not been running for over one month. If this will work at Trisquel
6.0.1 I do not know. Try?
sudo add-apt-repository ppa:gnome3-team/gnome3-staging
sudo apt-get install gnome-session gnome-shell
sudo apt-get update && sudo apt-get dist-upgrade
Source of my test
https://trisquel.info/en/forum/cannot-install-gnome-shell-trisquel-7-i18n-64-bit#comment-55679
Maybe interesting read about different ppas of Gnome.
https://wiki.ubuntu.com/UbuntuGNOME/Developers
I searched in Synaptic and I found Epiphany 3.12.0 and Gnome Maps 3.12.2.1.
It must be in the Gnome PPA I have added. I do not know if the PPA I have
added includes proprietary/binary blobs.
