Update to 0.3.6

CHANGES:
0.3.6
    #6, remove unnecessary Ord constraints from maximumBy/minimumBy
0.3.5
    Add Safe elemIndexJust/findIndexJust functions
    Add Safe scan functions
    Add Safe minimumBy/maximumBy functions
    Add a module of Exact functions
    Add Foldable minimum functions
    Clean up the Foldable module, deprecate the Safe variants