ecb: add compile window

Signed-off-by: Micky Ching <mickyching@163.com>
fedit: add mc-dos2unix

Signed-off-by: Micky Ching <mickyching@163.com>
ecb: using f7 to toggle and active ecb window

C-f7 is used for open speedbar window.
and ecb sources buffer is removed.

Signed-off-by: Micky Ching <mickyching@163.com>