Synchronise with 3.7rc1

Synchronise with 3.7rc1

Pull-in those changes:
    kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as an alias
    menuconfig: Assign jump keys per-page instead of globally
    menuconfig: Do not open code textbox scroll up/down
    menuconfig: Add jump keys to search results
    menuconfig: Extend dialog_textbox so that it can return to a scrolled position
    menuconfig: Extend dialog_textbox so that it can exit on arbitrary keypresses
    menuconfig: Remove superfluous conditionnal
    kconfig: document oldnoconfig to what it really does in conf.c
    kconfig/mconf.c: revision of curses initialization.

Signed-off-by: "Yann E. MORIN" <yann.morin@orange.com>