- Renamed storePosition to storePositions. Added deprication message and old name still works.
- Worked around hammer.js bug with multiple release listeners.
- Improved cleaning up after manipulation toolbar.
- Added getPositions() method to get the position of all nodes.
- Added getCenterCoordinates() method to get the x and y position in canvas space of the center of the view.
tweaked node label size cache
added cacheing to edge labels, cannot cache node labels due to different shapes
added startStabilization event
Write all item fields as data-? attributes on element

If the dataAttributes config option = 'all' then write every field as
data-? attributes on the element.
Update examples to include all_data_attributes
Updated dataAttributes documentation for 'all' option
Merge branch 'master' into develop
fixed typo in docs, fixed times in history, updated dataset update listener in Network
rephrased docs line
fixed emberassing typo bugs
fixed node label becoming undefined
fixed cluster sector scaling
fixed cluster font scaling
updated history
updated constructors for timeline and graph2d (container, items, groups, options) with backwards compatibility
updated background itemtype. No content is allowed now.
updated docs and examples with new constructors.
no default padding and margin for backgrounditems
Simplified the background item support for empty/undefined contents
Fixed height of BackgroundItems not being 100% when timeline has a fixed height
tweaked graph2d based on timeline. Introduced ignoreStacking for items, used in background item type.