Revert "Bump version to 0.4.0"
Revert "Bump version to 0.4.0"

This reverts commit f6316b73f1b20fb8dabb1ba65e865006ea02bab4.

CartoDB/cartodb,CartoDB/cartodb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb