hob: save button from settings called a nonexisting method

The method was removed when the process for saving configuration
in Hob was changed. Replace the call with the right function.

[YOCTO #4793]
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
HOB:Proper handle of SIGINT

Modal dialogs doesn't run on the main loop so they cannot
catch any signal from the terminal. This patch makes sure
the dialogs are destroyed when a SIGINT is sent to HOB.

[YOCTO #3329]

Signed-off-by: Valentin Popa <valentin.popa@intel.com>
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
world-image: add extra target

* similar to world target, but collects all PACKAGES
* recipes marked with EXCLUDE_FROM_WORLD are excluded from world as well
  as world-image
* recipes marked with EXCLUDE_FROM_WORLD_IMAGE are excluded completely
  from world-image, sometimes you can build 2 recipes in same sysroot,
  but cannot install them in the same image
* PACKAGES listed in EXCLUDE_PACKAGES_FROM_WORLD_IMAGE are also
  excluded. You can remove e.g. ${PN}-dbg, but keep all other PACKAGES.

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>