This only exists to pass around global state, and is only used
by one plugin. It's nicer for now if that plugin just accesses
a singleton/static state directly until it can be injected,
rather than make lots of classes and tests depend on Main.
Change-Id: I8ed6e4c90b9c6bdbcaeb01fc276df5819cb47e1a
Depends-On: I4ec47f958b40eb0a03ab50d4a5611e00b0c83f39
Reviewed-on: http://gerrit.dmdirc.com/2656
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>