AliasHandler:
- fix query in getList(), which caused an empty list on some systems
  https://sourceforge.net/p/postfixadmin/bugs/313/
  Fix by VERSATECH SRL, versatechsrl @SF


git-svn-id: svn://svn.code.sf.net/p/postfixadmin/code@1678 a1433add-5e2c-0410-b055-b7f2511e0802