[MESOS-?]: Fixing Javadocs so the build doesn't fail in Maven.

[ticket: X] : ?

Author      : berngp
Reviewer    : ?
Testing     : ?
[MESOS-?]: Fixing the examples to use the shaded protobufs

Why is this change necessary?

[ticket: X] : ?

Author      : berngp
Reviewer    : ?
Testing     : ?