* Merge from debian unstable, remaining changes (Debian Bug: #506172):
  - debian/ecryptfs-utils.postinst: handle pam-auth-update
  - debian/rules:keep the dpatch infrastructure around as we'll likely need
    it again; install the pam-auth-update file
  - debian/ecryptfs-utils.install: install the pam-auth-update file
  - debian/control: keep the dpatch build dep; libpam-runtime dep for
    pam-auth-update
  - debian/ecryptfs-utils.pam-auth-update: pam stack configuration
  - debian/ecryptfs-utils.dirs: usr share install dirs
  - debian/ecryptfs-utils.prerm: remove pam-auth-update configuration
* Dropped changes
  - debian/patches/10-counter_increment_fix.dpatch: included upstream
  - debian/ecryptfs-mount-private.desktop: included upstream
  - debian/ecryptfs-mount-private.txt: included upstream
  - debian/rules: desktop, readme files installed by upstream
  - debian/ecryptfs-utils.install: desktop, readme installed by upstream