Processor: range queries - range check

[chrisreu]

Not correct now for all possible values. rangeValidator just checks for <=. I think this need to be performed in the normalized values, or at least be implemented for each CType seperatly. For now i disabled this for the position search.

Normalizer.hs

rangeValidator :: CType -> [Text] -> [Text] -> Bool
rangeValidator t from to = case t of
-- XXX TODO real range check for positions
CPosition -> True

Processor.hs

-- values form a valid range    
-- XXX fix range validation - normalized values should be compared
--    unless' (rangeValidator cType ls' hs')
--            400 $ "invalid range for context: " `T.append` rangeText
-- type determines the processing

[chrisreu]

The issue still exists, but i think we can face it later.