Merge pull request #49 from bigkevmcd/master

Couple of minor improvements to the admin.
Updated requirements.
Fixed #50 by updating copyright year.
Implement display of building message.
Remote remote_addr in favour of identifying the server in the URL.
Merge pull request #53 from bigkevmcd/add-server-id-to-notifications

Remote remote_addr in favour of identifying the server in the URL.
Move is_dependency_building to model method.
Merge pull request #52 from bigkevmcd/display-dependency-building

Implement display of building message.