rename pf-xivo to xivo
rename pf-xivo to xivo
remove database files
remove dependency of xivo for xivo-upgrade
fix xivo/pf-xivo package installed
fix checking packages xivo/pf-xivo are installed
fix bad syntax variable
fix cleannup outdated config files in pre-start
let xivo-web-interface managing this own files
Merge branch 'master' into rename_pf-xivo_to_xivo

* master: (21 commits)
  remove old fai config files
  move grub check at the end of the upgrade
  move grub check after the upgrade
  add reboot step after installing grub 2
  fix command to extract old fai package names
  add command to force the regeneration of grub config file
  fix package name extraction command
  improve xivo-fai clean
  add grub check before upgrade
  make GRUB warning more imposing
  downgrade postgresql-common if necessary
  add step to wheezy upgrade before dist-upgrade
  fix is_linux_3.2_installed
  add newline before notice
  display notice at the end of Wheezy upgrade
  install non-PAE linux image if PAE failed to install
  run PG migration before changing the distribution
  update preseed file location
  add wheezy upgrade notice
  fix install new xivo-fai
  ...

Conflicts:
	xivo-upgrade/bin/real-xivo-upgrade
remove duplicate purge old fais already executed in real-xivo-upgrade
let xivo-provd managing this own files
let xivo-backup managing this own files
fix missing bracket
fix syntax error: unexpected end of file
clean olf pf-xivo conffiles
refactor real-xivo-upgrade
fix executable file
fix provd reactor error
add xivo-migrate-db script