Test that SLO disallows too small first segment if other segments
Test that SLO disallows too small first segment if other segments

SLO allows the first segment to be less than min_segment_size if
it is the only segment. Current tests verify that a single small
segment is allowed, and that multiple small segments are disallowed.
This patch adds a test to verify that SLO will disallow a manifest
with a small first segment followed by another correctly sized
segment.

Change-Id: I920c0aee38e4e16c49bd84a3b772308a00794fa7

eatbyte/Swift,matthewoliver/swift,Akanoa/swift,matthewoliver/swift,redbo/swift,openstack/swift,takeshineshiro/swift,prashanthpai/swift,Seagate/swift,hurricanerix/swift,bkolli/swift,bouncestorage/swift,williamthegrey/swift,dencaval/swift,hbhdytf/mac2,nadeemsyed/swift,matthewoliver/swift,mjwtom/swift,clayg/swift,takeshineshiro/swift,tipabu/swift,nadeemsyed/swift,Akanoa/swift,levythu/swift,gold3bear/swift,maginatics/swift,mjzmjz/swift,AfonsoFGarcia/swift,revoer/keystone-8.0.0,redhat-openstack/swift,openstack/swift,aerwin3/swift,notmyname/swift,dencaval/swift,redhat-openstack/swift,zackmdavis/swift,matthewoliver/swift,clayg/swift,gold3bear/swift,openstack/swift,dpgoetz/swift,larsbutler/swift,thiagodasilva/swift,swiftstack/swift,redbo/swift,iostackproject/IO-Bandwidth-Differentiation,anishnarang/gswift,tipabu/swift,IPVL/swift-kilo,nadeemsyed/swift,levythu/swift,bradleypj823/swift,psachin/swift,shibaniahegde/OpenStak_swift,hbhdytf/mac2,hbhdytf/mac2,bouncestorage/swift,Seagate/swift,psachin/swift,hurricanerix/swift,clayg/swift,smerritt/swift,nadeemsyed/swift,iostackproject/IO-Bandwidth-Differentiation,notmyname/swift,zackmdavis/swift,bradleypj823/swift,smerritt/swift,tipabu/swift,rackerlabs/swift,notmyname/swift,thiagodasilva/swift,AfonsoFGarcia/swift,notmyname/swift,mjwtom/swift,wenhuizhang/swift,psachin/swift,hurricanerix/swift,openstack/swift,hbhdytf/mac2,anishnarang/gswift,smerritt/swift,shibaniahegde/OpenStak_swift,Em-Pan/swift,swiftstack/swift,prashanthpai/swift,hbhdytf/mac,tipabu/swift,aerwin3/swift,daasbank/swift,mjzmjz/swift,rackerlabs/swift,hbhdytf/mac,dpgoetz/swift,maginatics/swift,revoer/keystone-8.0.0,daasbank/swift,bkolli/swift,psachin/swift,williamthegrey/swift,smerritt/swift,eatbyte/Swift,larsbutler/swift,swiftstack/swift,wenhuizhang/swift,IPVL/swift-kilo,Em-Pan/swift,hurricanerix/swift,clayg/swift