Version bump to 4.15.1
ARGO-279: fix workflow_should_show_completed? to return true when all steps have a status of 'skipped', 'completed', empty string, or nil.  fix relevant test to correctly exercise new behavior, fix old test that depends on slightly altered shared test setup, fix spacing in shared test setup.
Merge pull request #24 from sul-dlss/workflow_status_to_solr_ARGO-279_pt2

ARGO-279: fix workflow_should_show_completed?
Fixing merge conflicts
Version bump to 4.15.2
Ruby 2.1 is a real thing
Enter the modern equivalent-xml era

3 Major versions upgrade, covering 3 years.

This includes features for rspec 3 compatibility.
Merge pull request #26 from sul-dlss/develop

equivalent-xml update
Update moab-versioning

This is required to get rake spec to pass on ruby 2.1.  Indeed, it is
required to get rake spec to even run.
Merge pull request #27 from sul-dlss/develop

Update moab-versioning
Version bump to 4.15.3
Improve compatibility with slight net-ssh version reachback
New travis target (2.1.2)
Tested with newer version of confstruct
typo correction
pure whitespace edit

formatting
More whitespace/indentation cleanup

Remove trailing whitespace
Readability matters.
Update moab-versioning

Note tzinfo commented line added.  Warning during tests calls for this
dep to be added, but adding causes tests to fail.
Transpec update to all tests

Also removed trailing whitespace and misplaced \tab indents