Configure dependency resolvers via config/dependencies_resolvers_conf.xml if available.

Has no sample file but bring the configuration file more inline with others.
Client build system: add 'grunt watch' command: automatically copies files from client/galaxy/scripts/ to static/scripts when they change in client/galaxy/scripts; add some missing files and pack scripts
Fix config moves for the Tool Shed.
Remove newly redundant (and broken) test case.
That case was testing rename post job actions without replacements - last week I added a more expansive one with replacements (test_run_with_pja).
Update workflow API tests for inability to decode ids being a 400 instead of 404.
Sort of torn on what this should actually be I guess.
Fix library API test for format field redefinition in 9d152ed.
Rename tool_shed_wsgi.ini.sample to tool_shed_wsgi.ini, fix static and other errors I created when moving it to config/ in the first place.
merge.