TODO

BUGS:

Reimplement movement for selected items
Fix panning so scrollbars reflect size of the scene
Print - Why aren't objects printed as vectors?
DONE except for text - Draw grips/plants/text in screen coordinates, so always same size

BASIC FUNCTIONALITY:

DONE - Save/Load
DONE - Undo/Redo + Signals/slots for model/view syncing
DONE - Plant type selection
	Several common plants available (carrot, tomato, zucchini, pepper, peas, melon)
Tools
  DONE - Place plant tool
  DONE - Selection tool (enable DragSelect)
  DONE - Plant row (line) tool
	Specify spacing, default to plant type's row spacing
Show plant info
  dock window showing info of current selection
  Add to DB button

ADVANCED:

DONE - Measure tool
  DONE - Places a ruler with draggable grips, displays length of ruler in desired units
DONE - Rectangular bed tool
DONE - Background image
  DONE - set scale
  DONE - set opacity
  Could use offset, option to not tile
  Make undoable?
Snap to grid
X/Y-Axis Rulers
Plant DB editor
Activity Log
  Show list of activities by date
  Allow to Insert Pictures
Visual row spacing and plant spacing requirements
  DONE - Toggle on/off in View menu
  Row spacing draws a semi-transparent rectangle around the plant row
    Buggy: need to rotate to actual line, like ruler text
  DONE - Plant spacing draws a semi-transparent radius around the plant
Freeform row tool
Simplified Growth simulation
	Based on days to germination, maturity on seed packets
		(as estimated heat units required until stage is reached)
	Accumulation of heat units based on historical heat units
	Date slider - plant on certain date creates keyframe
	Moving slider will show plant growing (getting larger), fruit appearing, 
		Different plants can have different growth models
Grouping to enable moving entire group with one click-drag
  Ctrl+G to group, Ctrl+U to ungroup
  Save groups to file
Export Garden to Webpage
  Plan
  Meta-info
  Activity Log w/ pics