Update to bashate 0.4.0
Update to bashate 0.4.0

Update to bashate 0.4.0.  The biggest change in this is that bashate
does a syntax check with "bash -n" which can be useful

Change-Id: Iff625ef2181dfaba28349dc17de0749faddec539

dirkmueller/devstack,nawawi/openstack,openstack-dev/devstack,bigswitch/devstack,richliu/devstack,dtroyer/devstack,noironetworks/devstack,bswartz/devstack,bswartz/devstack,dtroyer/devstack,dirkmueller/devstack,group-policy/devstack,Mahito/devstack,samgoon/devstack,noironetworks/devstack,nawawi/openstack,openstack-dev/devstack,richliu/devstack,bigswitch/devstack,samgoon/devstack,group-policy/devstack,Mahito/devstack