*8672* Add missing column fetch to AuthorDAO
*8713* Clarify type of book vs. type of workflow
Correct typo
*8581* Make manual payment instructions optional
*8581* Introduce payment default settings
Add missing null locale for localized getter
Add openshift action hook script
Add XML validation to travis
*8712* allow for empty series position and languages in ONIX export
Doxygen improvements
hide modal close button when series grid is shown in a tab
*8629* include DOI metadata tags in catalog book header
*8611* make categories accessible from press settings
*8752* Make upgrade file rename idempotent
Remove doxygen from build script
*8773* Fix OAI base URL with mod_rewrite
Sync stable travis config with master
Submodule update (port newer WebTestCase for travis)
Change password hashing method for travis
*8786* Introduced tool to start submodules, getting lib code from developers repository when necessary