- initStruct(): add 'on_vacation'
- read_from_db_postprocess(): split off vacation alias from $goto
and store vacation status in on_vacation (honors the vacation alias
only, not the details from the vacation table)
git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@1344 a1433add-5e2c-0410-b055-b7f2511e0802