v0.4.0

• Convert rich text to plain text on paste #2
• Add ability to drag notes #3
  • Notes can be dragged by the user, with the note location constrained according to the graphic's geometry type. The note snaps to the nearest allowable location.
    • Along the path of a line (either side)
    • Along the outer ring of a polygon (exterior side only)
    • At one of up to 8 cardinal and diagonal positions, configurable per-note (see below).
  • Notes are draggable when editable (dragging controls are hidden otherwise).
  • Editable text div is now wrapped by an outer container, which can be draggable.
  • HubTextNotesLayer constructor parameters:
    • cssClass replaces textClass
    • cssClass is used to style outer/draggable container
    • note-text is used to style the inner/text container
  • HubTextNotesLayer.addNoteForGraphic() parameters:
    • placementAlignments defines a list (array) of allowed placement positions for notes attached to point graphics. Allowed values are: right, top-right, top, top-left, left, bottom-left, bottom, bottom-right.
• Use alpha channel when converting text notes to graphics, for Web Map export ae93362
• Explicitly remove event listeners to guard against memory leaks 544bc3f