Issue #750

This is just an IntelliJ refactor, using EventBus in place of
DMDircMBassador whenever possible.

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.

Change-Id: Id4f392b9e646eed8b90357974523772ae1b2b72e

Change-Id: Icf9c64b84ddc129fe54765a4a3cac475c58cf1de
Depends-On: I81484e5df7b5dfeb7067ba211c11f2df198ac43c
Reviewed-on: http://gerrit.dmdirc.com/3893
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

Change-Id: I860ce026d7d0c06aa86ee71a51bd449108a8d256
Reviewed-on: http://gerrit.dmdirc.com/3737
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: I21ea78e482fca3ab01a50671392ffc294d5bf043
Reviewed-on: http://gerrit.dmdirc.com/3730
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

Change-Id: I0b995639103e7511b89e9aee658f91476f2547b1
Reviewed-on: http://gerrit.dmdirc.com/3603
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>