Update DMDirc repo to HTTPS.

- Stop it thinking "modules" is a valid module.
- Remove some paths that don't exist.
- Apply the auto-suggested gradle tweaks.
- Let it duplicate the VCS config lots, because it's quite insistent.

Change-Id: Ia8eb45562293fa6520e590e2bb1af3df470ce63d
Reviewed-on: http://gerrit.dmdirc.com/3914
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: I3083c2e0ffc75019f752966e5a95dab138c82c3d
Reviewed-on: http://gerrit.dmdirc.com/3898
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: Iad5763d7d4baac0b25fafafced0f0483fe8b8329
Reviewed-on: http://gerrit.dmdirc.com/3856
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager