Don't save session information

Signed-off-by: Vicky Yu <vicky_yu@5vtechnologies.com>
bind "M-:" key as ":" key

Signed-off-by: Vicky Yu <vicky_yu@5vtechnologies.com>
Support C-\ s g t c C for cscope

Signed-off-by: Vicky Yu <vicky_yu@5vtechnologies.com>