Remove API Keys from Public Code

[lindsaypoirier]

In order to hide the Carto API Keys from public code, we need to figure out an alternative to publishing the maps via gh-pages. Once we figure this out, here are instructions for hiding the API keys: https://gist.github.com/derzorngottes/3b57edc1f996dddcab25

[zhik]

#32 Made a separate select only key