Improved tests in tempest.api.image.v2.*

Added new tests in tempest.api.image.v2.test_images,
tempest.api.image.v2.test_member.

Change-Id: I810d42022c15c5a3c1ab40eb4b78f0560f5da3ab
NeutronResourcesTestJSON Use the correct resource name for console log

Fetching the nova console log on error is failing because an incorrect
heat resource name is being used.

This will not reduce the failure rate for this test, but it will
enable collection of better debugging information.

Change-Id: I9d48eec23919bc8e6bc84b54d1e7aa8e8649f56b
Closes-Bug: #1284861
Make reseller admin role configurable

This commit makes the reseller admin role configurable. Previously the
swift tests which used the reseller admin role had hardcoded the role
to be the default ResellerAdmin. However the role is configurable, so
this commit adds a new config option which can be used to set the role
to something besides the default.

Change-Id: I3296a343480d4a0e0e4099863eb8869ffb0f83c3
Merge "Improved tests in tempest.api.image.v2.*"
Merge "NeutronResourcesTestJSON Use the correct resource name for console log"
Merge "Make reseller admin role configurable"
Merge branch 'master' of https://github.com/openstack/tempest