Add default true to stdout and stderr on Exec.

[brendandburns]

Fixes #225, though I would argue this is a breaking change for Kubernetes 1.9 and 1.10.

I'm going to try to repro and file a bug on upstream...

Sorry for the big diff. I also stripped \r\n from the file, I can revert for a cleaner diff if that is preferred.

The key diff is:

+            + "&stdout=true"
+            + "&stderr=true"

in Exec.java

@rjeberhard

[rjeberhard]

Thanks for pointing out what changed. I'm comfortable with this as one change. As a side note, I ran mvn fmt:format prior to my earlier push. How did we get \r\n line terminators in the file?

[brendandburns]

@rjeberhard I think I might have originally written this file on Windows, I think that they've been there all along...

Merging.