package.bbclass: ensure license excluded files aren't packaged

An excluded package left its files behind, which meant they could end up in
another package instead, meaning we could ship GPLv3 binaries even with GPLv3
in INCOMPATIBLE_LICENSE. Skip the files belonging to the excluded packages to
prevent this from occurring.

(From OE-Core master rev: c045bfe6b991006ac80f0e2d06a8917ae58d9262)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
image-mklibs: ensure sysroot is correctly set when calling gcc

[YOCTO #2519]

When getting gcc from sstate, it is possible to get a gcc with a bogus
sysroot configuration, as discussed in [1] or in [YOCTO #2519].

mklibs script will eventually call gcc, so we need to make sure that it
provides gcc with the right sysroot location.

[1] http://lists.openembedded.org/pipermail/openembedded-core/2013-September/084159.html

(From OE-Core master rev: 3a66dd762e493ad2cda57110be67c3b06628050a)

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
build-appliance-image: Update to dylan head revision

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>