make vm + live images can build together

Hello,

These patches can make vm and live images build together, and also make the images easier to use.

I'd like to combine the following classes if you are fine with it:
* boot-directdisk.bbclass and image-vm.bbclass into image-vm.bbclass. They are used for making vm images.
* bootimg.bbclass and image-live.bbclass into image-live.bbclass. They are used for making live images.
Combine them can make them easier to understand and also make the structure clearer.

// Robert

The following changes since commit 205b446f3fc4a9885179a66a8dab9d81bcc63dca:

uclibc: Do not use immediate expansion operator (2016-02-22 20:42:34 +0000)

are available in the git repository at:

git://git.openembedded.org/openembedded-core-contrib rbt/syslinux
http://cgit.openembedded.org/cgit.cgi/openembedded-core-contrib/log/?h=rbt/syslinux

Robert Yang (4):
image-live/boot-directdisk.bbclass: remove AUTO_SYSLINUXCFG boot-directdisk.bbclass: drop IS_VM chechking syslinux.bbclass: make vm and live can be built together sanity.bbclass: remove conflict checking for image vm and live

 meta/classes/boot-directdisk.bbclass |   21 ++++++++-------------
 meta/classes/bootimg.bbclass         |    1 +
 meta/classes/image-live.bbclass      |   17 ++++++++---------
 meta/classes/image-vm.bbclass        |   15 +++++++--------
 meta/classes/sanity.bbclass          |   12 ------------
 meta/classes/syslinux.bbclass        |   23 ++++++++++++++++++-----
 6 files changed, 42 insertions(+), 47 deletions(-)

1.7.9.5