CATALOG_DIR incorrect when multiple apps are deployed together

[maximlt]

When deploying multiple apps like the examples with lumen serve */*.yml it looks like the CATALOG_DIR environment variable is set to the last deployed app, and as such will break

This is the error I got while trying to deploy the examples:

 OSError: /Users/mliquet/work/dev/lumen/examples/seattle/data/SRLCC_*_Precip_*.csv resolved to no files

The files are those of the precip example but the expanded CATALOG_DIR - the first part in the path - is the one of the seattle example, which is the last example in the alphabetical order.