[COOK-3550] Allow Ubuntu/Debian users to install from the nginx repository

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-3776] - Specify user to use in ngix::source

Signed-off-by: Sean OMeara <someara@opscode.com>
Version bump to v2.0.2
Version bump to v2.0.4
Version bump to v2.0.5
Merge branch 'master' of github.com:opscode-cookbooks/nginx