-initial import
- commented out all cairo stuff
- flamed out getting vertical text to work without cairo.  Switching over to cairo after this rev...
now it kinda works.  But really ugly.  Must redo this entirely!
added a button to the GUI to make sure the plot widget plays nicely
- many changes made. Works well and shows real-time plotting
- added in some basic popup-menu stuff to start building user interaction features
- added beginning of dragging capability.  The hooks are now there...
- Now suports some basic mouse interaction:
- context (popup) menu
- autoscale and loose fit control
- cross-hair (cursor) display
- cursor coordinate display
- kinda got the zoom-window feature working.  Still some bugs though for sure
- added pause feature to main.c
- added panning capability with middle mouse button.  Works!
- fixed bug related to turning off show_coords
- started improving the layout calcs. e.g. now you can make labels invisible
  and layout will properly change
- Started adding in support for changing trace appearance.  User can set line
  properties using "jbplot_trace_set_line_props()"
- Started adding basic trace marker capability.  Currently only square and circular
  markers are supported
- Reorganized project directory so that test program ("test1") now live in "test" dir
fixed a couple bugs
commented out some debug shizzle
fixed bug where cross_hair wouldn't update properly
- still adding more public functions...
- added target for doxygen doc
- tiny mods