Merge pull request #60 from elifesciences/tweaks

Disable lens publish on finding new XML, pending system logic changes.
elife_id added to data sent to PublishArticle workflow.
Unzip XML as part of PublishArticle workflow.
LensArticle activity using local templates.
Change workflows to use new LensArticle activity and enable with NewS3XML cron.
Merge pull request #61 from elifesciences/lens-0.2

Lens 0.2
Lens header change.
Merge pull request #62 from elifesciences/lens-0.2

Lens header change.
Unzip supplemental files activity and workflow.
PublishSuppl supplementary files starter and cron.
Merge pull request #63 from elifesciences/publish-suppl

Publish suppl
Lens header change.
Adaptable history walker of SWF queue to find last completed execution.
SWFmeta history tests, basic.
Merge pull request #65 from elifesciences/swfmeta

Swfmeta - Fixes #64. Fixes #33.