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Fixing parameter finding for non-string parameters (ints/floats)
Improved jobs testing.

Fix bug in buildbot related to differences between local handling of list/tuple parameters and requests handling (I mostly use requests locally, but buildbot doesn't have it available). Add test that fails without @kellrott's pull request #314 (and in turn verifies it fixes a problem).
Merged in kellrott/galaxy-central/job-search (pull request #316)

Fixing non-string parameter selection for job searches