#166 improve page variant navigation
Fixed loading of page variant counters and the display in UI
(index for page variants still not working because of bug in server)
#166 improve page variant navigation
Marked the server side code to fix as deprecated with a TODO.
Merge branch 'develop' into feature/166_page_variants_navigation
#166 improve page variant navigation
Grand refactoring of data structure also for issue #73
to not use deprecated fields in the API anymore for page variant purposes
(was broken anyway therefore I changed this here radicaly).
This commit is only the server part of the refactoring,
 lient still uses old rest service data structure,
I will fix that in next commit.
#166 improve page variant navigation
Fixed changed step resource on server to consider build aliases
#166 improve page variant navigation
renamed step mavigation properties on server side
#166 improve page variant navigation
increased version number for internal format
#166 improve page variant navigation
refactored client to use new step service structure including new element 'stepNavigation' that contains needed counter and index for current page variant (now calculated properly again).
Merge branch 'feature/166_page_variants_navigation' into develop