zdicesare and yurishkuro Update Dockerfiles to reference executable via ENTRYPOINT (#815)
- In all Dockerfiles, reference the executable in ENTRYPOINT to allow
consumers to override default parameters without needing to specify
the executable path.

- Common default arguments in the query and standalone Dockerfiles
also move to ENTRYPOINT

- Move hotrod default argument to CMD

Signed-off-by: Zachary DiCesare <zachary.v.dicesare@gmail.com>
Latest commit 48bbbae Jul 9, 2018