To use Ubuntu packages on your system, add one of the following lines
to your /etc/apt/sources.list or into a new file in your /etc/apt/sources.list.d/

For Trust Tahr

deb trusty/
deb-src trusty/

For Precise Pangolin

deb precise/
deb-src precise/

For Maverick Meerkat

deb maverick/
deb-src maverick/

For Karmic Koala

deb karmic/
deb-src karmic/

For Hardy Hardon

deb hardy/
deb-src hardy/

For Edgy Eft

deb edgy/
deb-src edgy/

For Dapper Drake

deb dapper/
deb-src dapper/

For Breezy Badger

deb breezy/
deb-src breezy/

I sign my packages.  To get my key, run this:

$ gpg --recv-key C5722326DA561D91
$ gpg -a --export C5722326DA561D91 | sudo apt-key add -

Blair Zajac
[ICO]NameLast modifiedSizeDescription

[PARENTDIR]Parent Directory  -  
[TXT]HEADER.html2015-05-24 12:03 1.3K 
[DIR]trusty/2015-05-24 12:42 -  
[DIR]precise/2015-05-24 12:05 -  
[DIR]maverick/2015-05-24 12:05 -  
[DIR]karmic/2015-05-24 12:05 -  
[DIR]hardy/2015-05-24 12:05 -  
[DIR]edgy/2015-05-24 12:05 -  
[DIR]dapper/2015-05-24 12:05 -  
[DIR]breezy/2015-05-24 12:05 -  

Apache/2.4.52 (Ubuntu) SVN/1.14.1 OpenSSL/3.0.2 mod_wsgi/4.6.8 Python/2.7 mod_apreq2-20090110/2.8.0 mod_perl/2.0.12 Perl/v5.34.0 Server at Port 80