doji dates not put into a function yet

doji.jl

julia> using Series

julia> op  = readseries(Pkg.dir("Series/test/data/spx.csv"), value=2);

julia> hi  = readseries(Pkg.dir("Series/test/data/spx.csv"), value=3);

julia> lo  = readseries(Pkg.dir("Series/test/data/spx.csv"), value=4);

julia> cl  = readseries(Pkg.dir("Series/test/data/spx.csv"), value=5);

julia> cl[abs(value(op) - value(cl)) ./ (value(hi) - value(lo)) .< .01]

13-element Array{SeriesPair{Date{ISOCalendar},Float64},1}:
 1970-03-31  89.63
 1970-06-02  77.84
 1970-06-09  76.25
 1970-08-05  77.18
 1970-09-02  80.96
 1971-02-02  96.43
 1971-02-04  96.62
 1971-03-25  99.61
 1971-05-05  103.78
 1971-07-02  99.78
 1971-08-10  93.54
 1971-08-25  100.41
 1971-11-12  92.12