added filter-fields word which sets the returnfields slot in the current query object
added filter-fields word which sets the returnfields slot in the current query object

AlexIljin/factor,bjourne/factor,dch/factor,factor/factor,mrjbq7/factor,nicolas-p/factor,tgunr/factor,bjourne/factor,AlexIljin/factor,tgunr/factor,slavapestov/factor,dch/factor,slavapestov/factor,slavapestov/factor,bjourne/factor,bpollack/factor,sarvex/factor-lang,tgunr/factor,tgunr/factor,factor/factor,AlexIljin/factor,slavapestov/factor,nicolas-p/factor,factor/factor,AlexIljin/factor,factor/factor,nicolas-p/factor,dch/factor,mrjbq7/factor,bjourne/factor,sarvex/factor-lang,bpollack/factor,bpollack/factor,nicolas-p/factor,AlexIljin/factor,factor/factor,sarvex/factor-lang,bpollack/factor,nicolas-p/factor,nicolas-p/factor,sarvex/factor-lang,sarvex/factor-lang,sarvex/factor-lang,slavapestov/factor,mrjbq7/factor,bjourne/factor,dch/factor,sarvex/factor-lang,mrjbq7/factor,dch/factor,bjourne/factor,mrjbq7/factor,mrjbq7/factor,nicolas-p/factor,bpollack/factor,AlexIljin/factor,AlexIljin/factor,slavapestov/factor,bpollack/factor,tgunr/factor,dch/factor,factor/factor,tgunr/factor,bpollack/factor,slavapestov/factor,bjourne/factor