Initial implementation of notifications for tags.
Improvements to the notifications widget.
Fixed displayed text color of disabled controls.
Added libneuroml export function
Change requests are now being validated.
Replaced notifications action buttons with a single pop-up menu to save room.
Change requests now created for removed tags.
Wip: Graph widget with own property dialog
Wip: Export widget
Merge branch 'libneuroml' into improve-graph-widget
Added missing export widget files
Added colorcoding of skeleton in 3d based on user_id or reviewer_id values of skeleton nodes
Seperate out SegmentsData
Connector Selection Dialog. Need to add pre and post distinction
Not open selection table twice.
Hide synaptic sites in 3d. Closes #499
Connector Dialog Working
Project statistics as template. Fix bug in reviewed nodes display
Reorder buttons
Connector Selection from Connectivity Widget or Compartment Graph Widget