poni: PEP8 whitespace fixes
cloud_libvirt: nicer error message when 'cloud.profile' is not set
cloud_libvirt: clean up error handling and string formatting
versioning: always use git describe --long for versions
rcontrol_paramiko: epoll is in `select`, not `socket`
Merge remote-tracking branch 'saaros/misc-fixes'

* saaros/misc-fixes:
  rcontrol_paramiko: epoll is in `select`, not `socket`
  versioning: always use git describe --long for versions
  cloud_libvirt: clean up error handling and string formatting
  cloud_libvirt: nicer error message when 'cloud.profile' is not set
  poni: PEP8 whitespace fixes