Apparently you can't left/right align things vertically, who knew.

Closes #761

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: I3c7e88f6ed4e9afd6f4ed5e6040471b1329f6576
Depends-On: Id16ce13eac3bf4f359bd0d743cdd6041fc47bcaa
Depends-On: Ifc8ca757700db2dd19db89715e95f6c1df15e999
Reviewed-on: http://gerrit.dmdirc.com/3615
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>