[mock/f16] (4 commits) ...modified bind_mount and tmpfs plugins to use hooks for shell and chroot refactored --shell and --chr

[John Clark Williams]

Summary of changes:

  d8c652b... add custom exception for unshare(2) failures change getLog( (*)
  e735915... From Toshio Ernie Kuratomi <a.badger at gmail.com> Fix install (*)
  35d5baa... Fixed logging issues due to namespace change [BZ# 740232,73 (*)
  85abec3... modified bind_mount and tmpfs plugins to use hooks for shel (*)

(*) This commit already existed in another branch; no separate mail sent