Bumps version to 0.9.8
Bumps version to 0.9.8

Change-Id: I7c757f80989b5f42bebe59a882beaf4c31968ada

pellaeon/bsd-cloudinit,whiteear/cloudbase-init,pellaeon/bsd-cloudinit,chialiang-8/cloudbase-init,ader1990/cloudbase-init,CropCircleSys/bsd-cloudinit,alexpilotti/cloudbase-init,openstack/cloudbase-init,stackforge/cloudbase-init,stefan-caraiman/cloudbase-init,cmin764/cloudbase-init,bincentvaret/bsd-cloudinit