First draft of independent DataArrays package
Remove imports from operators.jl
Import tests for operators from DataFrames
Merge pull request #1 from simonster/master

Remove imports from operators.jl
Remove DEFAULT_COL_TYPE; fix values() def
Fix ambiguity error
Bring in cut() and rep() from DataFrames
Minor comment fix

The rle related function are complete yet they were marked as TODO items.
Merge pull request #6 from GlenHertz/patch-1

Minor comment fix
max/min -> maximum/minimum

See also JuliaStats/DataFrames.jl@bd3e33396227ec711bc43a32b75092afb22c8ca1
Fix new ambiguity warnings
Fix ambiguity warnings for real this time
Typo in previous commit
Don't coerce to Float when rounding
Improve operator performance

This makes iterating over the NA BitArray more efficient and removes
bounds checks in places where they make a difference, which gives a
significant (~2x) performance boost. In the absence of NAs, for +
DataArrays are within 30% of performance for Arrays. For .* we are
basically equivalent. For .== we are ~20% faster, probably because .==
on Arrays returns a BitArray.
Fix return type of ./

In addition to being right, this makes DataArray performance match
Array performance.
Fix all not to depend on order of input array

We return false if any member is false, true if all members are true,
and NA if all members are true or NA
Implement == to be consistent with all(.==)
Remove special errors for invalid use of >, >=, <, and <=

These were broken before, but they don't make much sense to have given
that these errors don't exist for Arrays in Base.
Add features from DataFrames