Update wic related documentation

Hi,

Synchronized output of 'wic help kickstart' with the dev manual. Updated list of image types in ref-variables.

The following changes since commit 2cd061a29a94fdcdfec86732e6bcbb71c12c4afc:

bluez5: include the patch only for 5.36 (2015-12-28 13:02:11 +0000)

are available in the git repository at:

git://git.yoctoproject.org/poky-contrib ed/wic/documentation-8821
http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=ed/wic/documentation-8821

Ed Bartosh (7):
dev-manual: describe creation of empty partition
dev-manual: add description of --no-table option
dev-manual: add description of --extra-space option
dev-manual: add description of --overhead-factor option
dev-manual: add description of UUID options
dev-manual: add description of --configfile option
ref-variables: update list of image types

 .../dev-manual/dev-manual-common-tasks.xml         | 39 +++++++++++++++++++-
 documentation/ref-manual/ref-variables.xml         | 41 ++++++++++++++--------
 2 files changed, 65 insertions(+), 15 deletions(-)

--
Regards,
Ed