JuliaStats/DataFrames.jl — pull request #644 by garborg (2014-07-08 22:18:13+00:00)
Title: Get reshape functions working, add tests

`pivottable` uses a function that had been removed.
`unstack` argments had names swapped, and inconsistent across methods.
`stackdf` and `meltdf` were inserting stray values into the head of the value column.