Change gradle config to download `all`
Change gradle config to download `all`

The `gradlew` config was just downloading the binaries, but if we
download `all` then IntelliJ can help provide access to sources and
do more autocompletion, so I've gone ahead and changed that.

UMM-CSci-3601/3601-lab4_mongo,UMM-CSci-3601/3601-lab4_mongo,UMM-CSci-3601/3601-lab4_mongo,UMM-CSci-3601/3601-lab4_mongo