in progress
fixed fixed_view
if spine item property set to pre-paginated that flow is ignored
Changed synthetic spread property passing
If rendition spread is not specified in the book use double for lanscape
introduced named values for scroll and syntheticSpreade settings froperties
Merge branch 'develop' into feature/rendition_selection

Conflicts:
	js/views/fixed_view.js
Merge branch 'feature/rendition_selection' into develop