bugfix with default tree position of the section. removed legacy code with the new tree position calculation
fixed an issue with empty _buffer attribute for m2ms
fixed a bug in /metadata, moved the modes into the settings.RESPONSE_MODES
fixed a bug with the recursive metadata propagation for NEO objects.
Merge branch 'wdat2-develop' into list-implementation
Fixed some issues in VList with the new buttons. Created images for buttons. Using css for image buttons and switched type of Button.toggle_state from string to boolean. Updated version to v0.3.1.
Basic implementation of the tree view and its test
Feature complete implementation of VTree
cherry-pick from 117b6a16a48efe9
Added rounded corners to VTree nodes
Merge tree-implementation into wdat2-develop
Merge list-implementation into wdat2-develop
Changes to toggle button subscribers signature v0.3.3

Now, toggle button subscribers and normal button subscribers have the same
signature:

  function (event, eventData) {}

The key difference is that if it is infact a toggle button, the eventData
object will have a 'state' property that will reflect the state of the button
when it was fired.  Eg. if the user clicked on a less link, the value of state
will be 'less'.

Also, condensed event handling to a single point rather than the two point, and
rather confusing approach adopted earlier.

Thanks to @stoewer for pointing all of it out.
Merge branch 'hotfix-0.3.3' into wdat2-develop
Manual merge button.less
All features merged to wdat2-develop v0.4.0
Documentation updated and minor bugfix
Version v0.4.1
Merged bugfix (v0.4.1) into wdat2-develop
added buffer_ids to the fks and m2ms in versioned relationship manager. fixed the explicit metadata GET function for neo objects.