Clean up X init (oe-core vs meta-oe)

Goals:
* Less confusing duplication between oe-core and meta-oe (currently just adding meta-oe to BBLAYERS completely changes X init because meta-oe provides another version of xserver-nodm-init)
* Make it easier to keep X init in sync between systemd and sysvinit

The xserver-nodm-init patch merges in functionality from xserver-nodm-init-2.0 from meta-oe: The combined "Xserver" script deprecates the ones in x11-common (oe-core) and xserver-common (meta-oe), and should work with other parts of either x11-common or xserver-common. In particular these differences still exist:
* Xsession files are different
* xserver-common generates X binary name and arguments at runtime

I believe the xserver-nodm-init-2.0 recipe can be removed after this patch with one caveat: The people who assume they will get xserver-common (meta-oe) without explicitly asking for it will be surprised. The x11 packagegroup has "VIRTUAL-RUNTIME_xserver_common" selection which will work but it does not seem to be commonly used.

I'd be happy to take advice on how to minimize problems from the above as well as on how to handle the version problems: should I bump the recipe version above 2.0?

Sorry about the timing wrt M3 freeze: This consumed much more time than planned. We can postpone if it looks too scary at this point.

Jussi

The following changes since commit 2fedd226c3385f1ac160b3aa0bfadbded85e288c:

ref-manual: Fixed small wording in PKGR in the glossary (2016-08-25 23:09:29 +0100)

are available in the git repository at:

git://git.yoctoproject.org/poky-contrib jku/xserver-nodm
http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=jku/xserver-nodm

Jussi Kukkonen (3):
base-files: Add shell test quoting
xserver-nodm-init: Deprecate /etc/X11/Xserver
x11-common: Remove Xserver script

 meta/recipes-core/base-files/base-files/profile    |  2 +-
 .../x11-common/x11-common/Xserver.in               | 12 ------
 meta/recipes-graphics/x11-common/x11-common_0.1.bb | 10 +----
 .../x11-common/xserver-nodm-init.bb                | 47 +++++++++++++---------
 .../x11-common/xserver-nodm-init/Xserver           | 25 ++++++++++++
 .../x11-common/xserver-nodm-init/Xusername         |  1 -
 .../x11-common/xserver-nodm-init/xserver-nodm      | 10 +++--
 .../x11-common/xserver-nodm-init/xserver-nodm.conf |  1 -
 .../xserver-nodm-init/xserver-nodm.conf.in         |  7 ++++
 ...server-nodm.service => xserver-nodm.service.in} |  4 +-
 10 files changed, 69 insertions(+), 50 deletions(-)
 delete mode 100644 meta/recipes-graphics/x11-common/x11-common/Xserver.in
 create mode 100644 meta/recipes-graphics/x11-common/xserver-nodm-init/Xserver
 delete mode 100644 meta/recipes-graphics/x11-common/xserver-nodm-init/Xusername
 delete mode 100644 meta/recipes-graphics/x11-common/xserver-nodm-init/xserver-nodm.conf
 create mode 100644 meta/recipes-graphics/x11-common/xserver-nodm-init/xserver-nodm.conf.in
 rename meta/recipes-graphics/x11-common/xserver-nodm-init/{xserver-nodm.service => xserver-nodm.service.in} (76%)

2.1.4