Installation without super user

[nantonel]

Hi! Thanks for the nice package!

I was wondering if it's really necessary to use the following command suggested in the README:

sudo pip install pandas

which requires super user.
Wouldn't be better to completely rely on Conda.jl?
Additionally it looks like pytables also needs to be installed.

This is how I mange to install Pandas without super user:

julia> using Conda

julia> Conda.add("pandas"); Conda.add("pytables")

julia> Pkg.add("Pandas")

I believe all of this could be included in a build script.

[malmaud]

Good idea, I updated the README instructions to make it clearer that it isn't necessary to install anything as root.