CORE-3397: fixed a problem with query-string parameters not being forwarded to metadactyl for the force-update-workflow endpoint
Merge remote-tracking branch 'remotes/origin/dev'
Merge remote-tracking branch 'remotes/origin/dev'
CORE-3475: added the pass-through endpoints to export and import reference genomes
Merge branch 'dev'

Conflicts:
	README.markdown
	src/donkey/core.clj
Merge branch 'dev'
Merge remote-tracking branch 'remotes/origin/dev'
Merge branch 'dev'
Merge remote-tracking branch 'remotes/origin/dev'
Merge remote-tracking branch 'remotes/origin/dev'
Merge remote-tracking branch 'remotes/origin/dev'
Merge branch 'dev'
Merge branch 'dev'
Merge remote-tracking branch 'remotes/origin/dev'
Merge branch 'dev'
Merge remote-tracking branch 'remotes/origin/dev'
Merge remote-tracking branch 'remotes/origin/dev'
Merge branch 'dev'
Merge branch 'dev'
CORE-3491: two service modifications:

- the preferences service now generates the default output directory if it's not already selected
- the default-output-dir service no longer accepts a "name" parameter