Fixed Compat UTF8String deprecation warnings. (JuliaData#1203)

Replaced all instances of Compat.UTF8String with String.
NOTE: Compat deprecated UTF8String when it dropped julia-0.4 support.

Move describe code for Arrays out of DataFrames (JuliaData#1185)

Fix handling of non-Int row indices (JuliaData#1177)

Non-Int row-indices were not being correctly converted to Int.

- explicit conversion to Vector{Int}
- test-cases added

Fix more 0.6 depwarns (JuliaData#1171)

Use registered Documenter.jl instead of cloning directly from repository

Query docs backport (JuliaData#1126)

* Add documentation for Query.jl

DataFrames v0.8.5 [49da3cc]

DataFrames v0.8.4 [30aae2a]

DataFrames v0.8.3 [ef36bd3]

DataFrames v0.8.2 [d1fc340]