Stop swimming against the tide and accept what most of the rest of
the world does.

While it adds an annoying depth to the actual source code, it makes
the root directory nicer (no more 'test-res' dirs), means we don't
have to override the gradle config, and makes it nicer to work in
IDEA 2016.1.

Keep them in src for now so ant builds still work (working
clients are good, I'm informed).

Change-Id: I6d5efac0c5545675572b4527ff16c8ab0eb2da6c
Reviewed-on: http://gerrit.dmdirc.com/4041
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Add Dagger as an Ivy dependency, update the build file to bundle
the dagger runtime libraries with the client, and include Dagger's
license (Apache 2) so it's displayed in the UI.

Change-Id: Ie147032cd16a753868ad52b55f3406091cb672a6
Reviewed-on: http://gerrit.dmdirc.com/2643
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>