#166 and #165 improved step and page navigation: removed additional actions menu and added label vor page variant navigation
#165 improve step & page navigation
I had to remove this margin style for btn because this ruined some other nice bootstrap stylings (especially btn-group).
Also I did not see while this margin should be needed at all, I did not find any influence in any pages when removing it, therefore removed it.
#165 improve step & page navigation
corrected error in less file
#165 improve step & page navigation
Now removed the whole btn style, because I did not see while this should be needed at all, I did not find any influence in any pages when removing it, therefore removed it.
#165 improve step & page navigation
changed layout, icons, labels and tooltips for page, step and page-variants navigation
also fixed the disablement of previous and next page buttons to work on last or first page properly.
#165 improve step & page navigation
also added a tooltip to the toggle metadata button
Refactored end 2 end tests:
use separate file for each use case
#165 improve step & page navigation
merged latest from develop branch
fixed missing increased internal format version,
and fixed and improved the end 2 end tests.
#165 improve step & page navigation
calculate and show count and indexes of pages and steps