From: Rusty Russell <rusty@rustcorp.com.au>

From:  a.othieno@bluewin.ch (Arthur Othieno)
From:  Vinay K Nallamothu <vinay-rc@naturesoft.net>

Remove various duplicated #includes

From:  Vinay K Nallamothu <vinay-rc@naturesoft.net>

        Use mod_timer in drivers_block_floppy98.c

From:  carbonated beverage <ramune@net-ronin.org>

        doc update for bk usage
        bk://... appears to be dead, use http://... instead.