Added zundel to ci emails

Reviewed at https://rbcommons.com/s/twitter/r/553/
Make jvm and python binary running play nicely with each other.

Previously PythonRun threw an exception if it saw a jvm binary target
on the cmd line. Since it happens to run first, that prevents ever
running a jvm target...

TODO: It would be nice if there was a more principled way for
tasks to coordinate claiming targets, so that we can error out
if the task we're trying to run is neither a jvm_binary nor a
python_binary.
wire these integration tests to the tests/python/pants_test:integration target

"All integration tests should be wired up to the tests/python/pants_test:integration target, I think."

oh yeah, good idea; that's probably what it's there for, d'oh

Testing Done:
./pants tests/python/pants_test/BUILD:integration

Now runs fou^W FIVE tests.

Reviewed at https://rbcommons.com/s/twitter/r/543/
travis CI mail += lhosken

reviewed at https://rbcommons.com/s/twitter/r/552/

but patched in by hand like an animal
Added support for multiple pants_support_baseurls.

Changed pants_support_baseurl to a list. Pants now goes through each url in the list from first to last, downloading the first binary with a valid url (and then breaking). This way, pants users can set their own support repo online and add it to the beginning of the list, so that their repo will be queried before the default repo on pantsbuild.github.io.