Fix Free desktop notification config error.

Change-Id: Iea8965f9635138bc48bcae5f12c818f51819b1b5
Fixes-Issue: CLIENT-465
Reviewed-on: http://gerrit.dmdirc.com/3210
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>
Abort topic edit when config is changed.

Change-Id: I4f7c19c54d9733f029985dce13e7cfcae226c632
Fixes-Issue: CLIENT-465
Reviewed-on: http://gerrit.dmdirc.com/3211
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager
Fix error trying to save CSD settings.

Because of the ordering of assignments in ChannelSettingsDialog's ctor,
we weren't assigning the global config before passing it in to the
list modes pane. This caused NPEs if toggling the 'show extended info'
option and saving.

Change-Id: I89f1ca9e29aa38fcf278e9afd2b9fbc214b4fbe3
Fixes-Issue: CLIENT-454
Reviewed-on: http://gerrit.dmdirc.com/3212
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager