* gedit-tab.c:
        * gedit-local-document-saver.c:
        * gedit-gio-document-saver.c:
        * gedit-io-error-message-area.c:
        * gedit-gio-document-loader.c:
        * gedit-mmap-document-loader.c:
        * gedit-document.c:
        * gedit-document.h:
        * gedit-document-saver.c:

        Fixed proper use of gio errors

svn path=/trunk/; revision=6419