initial experimentation
Merge remote-tracking branch 'origin/develop' into feature/zoom
Added zoom to fixed layout
Merge
Changes to get zoom working alongside scrollable view
call to isCurrentViewFixedLayout to chek for fixed layout view type
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
Merge branch 'develop' into feature/zoom
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