If you picked 16.04 from the dropdown, we'd skip the userdata
If you picked 16.04 from the dropdown, we'd skip the userdata

This means no python, and no build.  Instead, only zero out the
userdata when doing full_edx_installation which assumes a pre-built AMI.

Fix a comment about 12.04

Stanford-Online/configuration,stvstnfrd/configuration,hks-epod/configuration,armaan/edx-configuration,EDUlib/configuration,edx/configuration,jorgeomarmh/configuration,michaelsteiner19/open-edx-configuration,hks-epod/configuration,rue89-tech/configuration,open-craft/configuration,arbrandes/edx-configuration,michaelsteiner19/open-edx-configuration,jorgeomarmh/configuration,Stanford-Online/configuration,Stanford-Online/configuration,gsehub/configuration,armaan/edx-configuration,edx/configuration,gsehub/configuration,stvstnfrd/configuration,hastexo/edx-configuration,proversity-org/configuration,arbrandes/edx-configuration,hks-epod/configuration,michaelsteiner19/open-edx-configuration,appsembler/configuration,rue89-tech/configuration,arbrandes/edx-configuration,edx/configuration,rue89-tech/configuration,Stanford-Online/configuration,EDUlib/configuration,gsehub/configuration,hastexo/edx-configuration,armaan/edx-configuration,appsembler/configuration,mitodl/configuration,open-craft/configuration,stvstnfrd/configuration,EDUlib/configuration,rue89-tech/configuration,hks-epod/configuration,open-craft/configuration,Stanford-Online/configuration,proversity-org/configuration,jorgeomarmh/configuration,appsembler/configuration,stvstnfrd/configuration,rue89-tech/configuration,arbrandes/edx-configuration,hks-epod/configuration,arbrandes/edx-configuration,mitodl/configuration,EDUlib/configuration,hastexo/edx-configuration,EDUlib/configuration,hastexo/edx-configuration,edx/configuration,mitodl/configuration,gsehub/configuration,stvstnfrd/configuration,mitodl/configuration,hastexo/edx-configuration,proversity-org/configuration,appsembler/configuration,open-craft/configuration,michaelsteiner19/open-edx-configuration,gsehub/configuration,jorgeomarmh/configuration,proversity-org/configuration,armaan/edx-configuration,proversity-org/configuration