Add curl back as a dependency in the base image. (#1044)
Add curl back as a dependency in the base image. (#1044)

We use curl in certain scenarios to verify that the kernel gateway
is functioning and accessible, so it is required in some configurations.

It's also just a generally useful tool that most people will want
in their development environment.
craigcitro/datalab,googledatalab/datalab,parthea/datalab,parthea/datalab,yebrahim/datalab,parthea/datalab,googledatalab/datalab,yebrahim/datalab,parthea/datalab,googledatalab/datalab,craigcitro/datalab,googledatalab/datalab,craigcitro/datalab,googledatalab/datalab,parthea/datalab,googledatalab/datalab,yebrahim/datalab,yebrahim/datalab,craigcitro/datalab,parthea/datalab,craigcitro/datalab,yebrahim/datalab