Tidy up systray plugin, hopefully prevent NPE if mainframe fails to load
Tidy up systray plugin, hopefully prevent NPE if mainframe fails to load

Change-Id: I7fd69c2d9a77e2c10bc2c86c7a3b2cbf9f484e1f
Reviewed-on: http://gerrit.dmdirc.com/1913
Automatic-Compile: DMDirc Local Commits <fd7610eb81751244add0a62da2de7da51cfdce47@googlemail.com>
Reviewed-by: Chris Smith <711c73f64afdce07b7e38039a96d2224209e9a6c@dmdirc.com>

DMDirc/Plugins,DMDirc/Plugins,DMDirc/Plugins,csmith/DMDirc-Plugins,DMDirc/Plugins,csmith/DMDirc-Plugins,DMDirc/Plugins,csmith/DMDirc-Plugins,csmith/DMDirc-Plugins,csmith/DMDirc-Plugins