Developer conveniences for running jobs.
Developer conveniences for running jobs.

Log username in SDK version to more easily identify jobs.
Log a Stackdriver logs link for jobs that run on a non-standard
endpoint.

Change-Id: I2fa52b87240d0dcda4afb234e390b30a414aff29
Reviewed-on: https://team-review.git.corp.google.com/79647
Verified-Style: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Verified-BuildAndTest: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Henning Rohde <cc74ff07599c64f633a3f6876da4eb88a647f9b9@google.com>

robertwb/incubator-beam,robertwb/incubator-beam,apache/beam,lukecwik/incubator-beam,chamikaramj/beam,chamikaramj/beam,lukecwik/incubator-beam,markflyhigh/incubator-beam,markflyhigh/incubator-beam,rangadi/beam,markflyhigh/incubator-beam,charlesccychen/incubator-beam,charlesccychen/beam,rangadi/beam,iemejia/incubator-beam,iemejia/incubator-beam,charlesccychen/beam,chamikaramj/beam,charlesccychen/beam,robertwb/incubator-beam,tgroh/beam,apache/beam,lukecwik/incubator-beam,robertwb/incubator-beam,apache/beam,robertwb/incubator-beam,robertwb/incubator-beam,apache/beam,chamikaramj/beam,lukecwik/incubator-beam,chamikaramj/beam,chamikaramj/beam,RyanSkraba/beam,chamikaramj/beam,apache/beam,rangadi/beam,rangadi/incubator-beam,markflyhigh/incubator-beam,mxm/incubator-beam,RyanSkraba/beam,lukecwik/incubator-beam,RyanSkraba/beam,charlesccychen/beam,charlesccychen/incubator-beam,rangadi/beam,chamikaramj/beam,rangadi/beam,tgroh/beam,markflyhigh/incubator-beam,markflyhigh/incubator-beam,charlesccychen/incubator-beam,RyanSkraba/beam,lukecwik/incubator-beam,apache/beam,apache/beam,chamikaramj/beam,mxm/incubator-beam,tgroh/incubator-beam,RyanSkraba/beam,RyanSkraba/beam,tgroh/beam,rangadi/beam,apache/beam,lukecwik/incubator-beam,rangadi/incubator-beam,apache/beam,apache/beam,charlesccychen/beam,tgroh/incubator-beam,robertwb/incubator-beam,robertwb/incubator-beam,rangadi/incubator-beam,lukecwik/incubator-beam,apache/beam,markflyhigh/incubator-beam,robertwb/incubator-beam,charlesccychen/beam,robertwb/incubator-beam,rangadi/beam,lukecwik/incubator-beam,charlesccychen/beam,tgroh/beam,chamikaramj/beam,lukecwik/incubator-beam,RyanSkraba/beam