[Gm2] gm2 on ubuntu 15 vivid

[Noam Kloos]

after editing /etc/apt/sources.list and apt-get update this is my result.

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Err http://floppsie.comp.glam.ac.uk squeeze InRelease

Err http://floppsie.comp.glam.ac.uk squeeze Release.gpg
  Unable to connect to floppsie.comp.glam.ac.uk:http:
Fetched 210 kB in 2min 0s (1745 B/s)
Reading package lists... Done
W: Failed to fetch 
http://floppsie.comp.glam.ac.uk/debian/dists/squeeze/InRelease

W: Failed to fetch 
http://floppsie.comp.glam.ac.uk/debian/dists/squeeze/Release.gpg Unable 
to connect to floppsie.comp.glam.ac.uk:http:

W: Some index files failed to download. They have been ignored, or old 
ones used instead.

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