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.

This allows them to be created inline without using type-unsafe
varargs (albeit a bit more verbosely).

new ValidatorChain(v1, v2, ...) becomes

ValidatorChain.builder()
    .addValidator(v1)
    .addValidator(v2)
    ...
    .build();

Change-Id: I6c92142bf294335419fbd16593125416dd33c74e
Reviewed-on: http://gerrit.dmdirc.com/3168
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: Id44b617ffa590a8562fa5f6f79eaeb55fb432075
Reviewed-on: http://gerrit.dmdirc.com/2980
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: Iaaa1509b9f33742a5a2f5d9d6f4608432ddeaaaa
Reviewed-on: http://gerrit.dmdirc.com/2606
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: Ib1ec0d7b74ea50a9c49c81e7d4320d51457812d9
Reviewed-on: http://gerrit.dmdirc.com/2290
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: Ic35853b0be7901c0d9b457ef5d099105e4852560
Reviewed-on: http://gerrit.dmdirc.com/2075
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

Change-Id: I9d07e1b9b906df823c5f433babac82feb8cef4b8
Reviewed-on: http://gerrit.dmdirc.com/1725
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>

Issue 4253

Change-Id: Id5a06b7a2567cf5b23b7886f15faeb4f00a5cc34
Reviewed-on: http://gerrit.dmdirc.com/1456
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Automatic-Compile: Gregory Holmes <greg@dmdirc.com>
Reviewed-by: Gregory Holmes <greg@dmdirc.com>