Simplified _view/bbox and _list/bbox-filter.

When it comes to performance enhancement, it all depends on the level of
stupidity put in the previous approach. Apparently, getRow() is a huge
bottleneck and should not be called more often than needed.
Added \" and \' for _list/tabulate.

I figured since a single quote is allowed in field names for import/export,
_list/tabulate expressions should also have access to them.
The global regexp needs simplification, though. It is way too long!!!
This is a shorter and hopefully a more comprehensive version.
Fixed bad boolean expression.
Fixed admin party status in login_bar.