removed some items from the document menu to the preferences dialog, removed…

removed some items from the document menu to the preferences dialog, removed file save dialog from interface.c to dialogs.c, added toggle for line numbers


git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@198 ea778897-0a13-0410-b9d1-a72fbfd435f5