Update the option types for protobuf-gen to be list types, since they are all advanced.
Review Request #3100 - Created Nov. 8, 2015 and submitted
|benjyw, gmalmquist, jsirois|
Followup to comments in https://rbcommons.com/s/twitter/r/3098/
Before this change, the --gen-protoc-javadeps option was append only, which did not allow us to override the
default value when something in options parsing was fixed.
CI passed at https://travis-ci.org/pantsbuild/pants/builds/89945413
Updated our repo against this patch which declares values for all of these options that I changed.