Now with working dependencies and webserver.

* 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: I421391f9eef53b582838b7dc8471f4ad737c38e7
Reviewed-on: http://gerrit.dmdirc.com/3236
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

Change-Id: I3372fcf5db4539d21192d663caaa052394377a2c
Reviewed-on: http://gerrit.dmdirc.com/276
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>
Tested-by: Gregory Holmes <greboid@dmdirc.com>