[FIX] Issues related to the tracker options format conversion, removing more array-style option access, providing options_map from the fields definitions, throw out an exception when a filter option that can no longer work is used

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@46636 b456876b-0849-0410-b77d-98878d47e9d5