Modernize OPTIONS for postfix
Make postfix use wrapper binaries on PBIDIR/bin or PBIDIR/sbin instead of try to use regular binaries from PBIDIR/local/(s)bin. etc is also linked from PBIDIR to PBIDIR/local then it won't break anything. It helps ticket #4018
Bump postfix for 2.2 due to recent changes
Merge remote-tracking branch 'upstream/master'