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.

* Move all plugins to their own top-level directories.
* Move resources out of source trees
* Add Gradle build scripts.
* Remove ivy and ant build scripts.

Change-Id: Ib69a48ef26800c174ccf51c84ff9d1f73529460f
Depends-On: I303b6b69518468f98d48d835b8f40135d9e4bcbf
Reviewed-on: http://gerrit.dmdirc.com/3850
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: I0df4403ee5cb5019ada47705fe74874ca3f81127
Reviewed-on: http://gerrit.dmdirc.com/3221
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: Ia75b28fcd34682079234e3ad8d6c83f84a616cf0
Reviewed-on: http://gerrit.dmdirc.com/3098
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: I3e4fd86a0d19f5167506df5986f7ec256b224820
Reviewed-on: http://gerrit.dmdirc.com/2979
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: I8bb1e5bc9e2ca965ff3687d365a167c9b5ccc746
Depends-On: I1d49bc2e572e44466193b4851646edb01d303998
Reviewed-on: http://gerrit.dmdirc.com/2613
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: I1eea04000294c228a8f66464c89f92c1a7cd5321
Reviewed-on: http://gerrit.dmdirc.com/2605
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: I4f31edd67867d4039268b3568821a4bd5b0779b5
Reviewed-on: http://gerrit.dmdirc.com/2472
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>