AliasHandler:
- setmore(): use old goto values if no new value is given. Fixes
  'Making alias inactive cleans "goto" field'
  https://sourceforge.net/p/postfixadmin/bugs/316/


git-svn-id: svn://svn.code.sf.net/p/postfixadmin/code@1675 a1433add-5e2c-0410-b055-b7f2511e0802
vacation.pl:
- fix two queries for postgresql
  Patch by Christoph Kuchenbuch,
  https://sourceforge.net/p/postfixadmin/bugs/315/


git-svn-id: svn://svn.code.sf.net/p/postfixadmin/code@1676 a1433add-5e2c-0410-b055-b7f2511e0802