Added explicit documentation on synchronisation. Minor code tidying and typo fixes. Fixes issue 4344. Change-Id: I92b691de235cb5da1ca83133cb6eac451c5973bd Reviewed-on: http://gerrit.dmdirc.com/1452 Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com> Reviewed-by: Gregory Holmes <greg@dmdirc.com>