Fixed typo in var name of model
Removed created_on and last_modified from SheetItemList's ordering
Replaced item with denormalizedsheetitem in prefetch_related inside related_map of SheetManager
Fixed url issues related to DenormalizedSheetItem;
Replaced items with denormalizedsheetitems in fields of SheetDetail
Moved _create_item method to BaseParser
Removed copying and reseting of objects_lookup before dry saving items in validate;
Re-use _create_item of BaseParser;
Added cleaning of empty strings in budget/actual to 0.0
Implemented denormalize_sheet task
Merge branch 'develop' of https://github.com/prjts/open-budget into develop
Revert changes to local settings
Improved rows filter to allow only one amount column and also skip row if all are emptyor 0s
Fixed errors with lookup of inverses and backwards that may not be contained in the imported sheet
Returned custom get_queryset using entity an latest params to TemplateNodeList;
Fixed the NodeTimeline view and changed to ItemsTimeline
Changed TemplateNode.timeline from properry to a method and added the include_future argument;
 Fixed SheetItemManager.timeline
Started Implementing SheetTimeline serializer
Fixed node lookup when it's not found in the parent but exist in an ancestor
Changed NodeTimeline view to ItemsTimeline
Refactored legends_list by creating LegendsList controller;
Refactored UI modules declaration into main UI module;
Replaced item occurances back to  node
Updated backbone, d3 and jquery
Added getTimelineRoute
Changed SheetItemBase from DenormalizedSheetItem back to SheetItem