Jeremy Custenborder

swim-build reports errors in log but returns a success (0) exit code.

2

I'm seeing compilation failures when running `npx swim-build` but the exit code is 0, so scripts see it as successful. ``` npx swim-build compiling @swim/util:main compiled @swim/util:main in 20ms compiling...

jcustenborder/kafka-connect-parent#10

6.4.0 added support for [Indexer acknowledgement ](http://dev.splunk.com/view/event-collector/SP-CAAAE8X) which will allow us to determine that messages have been indexed.