Sign the Release file for the Debian repository

[tobyweston]

Avoid the following problem:

$ sudo apt-get install temperature-machine
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
...
The following NEW packages will be installed:
...
0 upgraded, 108 newly installed, 0 to remove and 2 not upgraded.
Need to get 182 MB of archives.
After this operation, 558 MB of additional disk space will be used.
Do you want to continue? [Y/n] 
WARNING: The following packages cannot be authenticated!
  temperature-machine
Install these packages without verification? [y/N] n
E: Some packages could not be authenticated

[tobyweston]

Looking more into this, it seems tied to #84 so closing this one