rename pf-xivo to xivo
Merge branch 'master' into rename_pf-xivo_to_xivo

* master:
  fix indentation
  remove not null constraint on user_id in user_line
fix broken symlink
remove database files
add fix path right for dahdi
Merge branch 'rename_pf-xivo_to_xivo'

Conflicts:
	xivo-config/datastorage/asterisk.sql
	xivo-config/datastorage/xivo.sql