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: I5330ef3fe6d9d6893a933d6639a2cd586ffddbfa
Depends-On: I5200f8d84e409cb71c5f7338bca18af6de4c0726
Depends-On: I38151f7c99de90b06e9a29c81e351361d9c6f75b
Reviewed-on: http://gerrit.dmdirc.com/3601
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

Change-Id: I35bf8ce93d7be8fb714b1a58adc9dd66672ec717
Reviewed-on: http://gerrit.dmdirc.com/3124
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: I2d37f4e0be3d4c8f0a867ad9a0a516dc3193a2a6
Reviewed-on: http://gerrit.dmdirc.com/3019
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: I912eb22c4612741e60626f8c59e065ad98a5c05a
Reviewed-on: http://gerrit.dmdirc.com/2997
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

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

Change-Id: Ic204dbad72378455b5cd9dbd66d29dacf31ddd9c
Reviewed-on: http://gerrit.dmdirc.com/2895
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

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

Add slf4j API jar

Change-Id: I56f1f80196a64c5c34b6824d0056de6bf289f6d8
Reviewed-on: http://gerrit.dmdirc.com/2319
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager