Exclude contraband generated files from diff by default
Exclude contraband generated files from diff by default

In both local git diff and GitHub diff you can still see the diff if you
want. This is just to remove the noise by default.

mdedetrich/sbt,sbt/sbt,sbt/sbt,xuwei-k/xsbt,mdedetrich/sbt,xuwei-k/xsbt,mdedetrich/sbt,mdedetrich/sbt,sbt/sbt,mdedetrich/sbt,xuwei-k/xsbt,sbt/sbt,xuwei-k/xsbt,sbt/sbt,xuwei-k/xsbt,sbt/sbt,mdedetrich/sbt,sbt/sbt,mdedetrich/sbt