Update submodules: plugins (new commits)

plugins:
    7ba2ca6 Chris Smith <chris@dmdirc.com>
            Add gradle wrapper

            Gerrit: http://gerrit.dmdirc.com/3895

Change-Id: I1efd586e2fa3ac0a42a2941c17be1d7bb0de9e1d
Add a qualifier for ColourManager.

Change-Id: Icf9c64b84ddc129fe54765a4a3cac475c58cf1de
Depends-On: I81484e5df7b5dfeb7067ba211c11f2df198ac43c
Reviewed-on: http://gerrit.dmdirc.com/3893
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>
Update submodules: plugins (new commits)

plugins:
    6fc005c Greg Holmes <greg@dmdirc.com>
            Add a qualifier for ColourManager.

            Depends-On: Icf9c64b84ddc129fe54765a4a3cac475c58cf1de
            Gerrit: http://gerrit.dmdirc.com/3892

Change-Id: I8380a9db7a100669d5983aa8f8442b281f4b6f4c