GEOS-6757: Fixing latlon axis force management on WCS 2.0
Update legendgraphic.rst

fix GEOS-6737
Update vendor.rst

fix GEOS-6756
Merge pull request #818 from Martin-Wegner/patch-2

Update vendor.rst
Merge pull request #817 from Martin-Wegner/patch-1

Update legendgraphic.rst
Merge pull request #811 from dromagnoli/GEOS-6757

GEOS-6757: Fixing latlon axis force management on WCS 2.0
[GEOS-6759]: Adding overviewPolicy management as WCS20 extension
Merge pull request #814 from dromagnoli/GEOS-6759

[GEOS-6759]: Adding overviewPolicy management as WCS20 extension
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/wcs2_0/src/main/java/org/geoserver/wcs2_0/GetCoverage.java