Init prefs

- dialog works
- calls back
- prefs not actually applied
Almost there with prefs

changing number of rows messes up existing toggles, need to fix this
Handle resize properly
Switch to A_GIMME for grid creation
rename ssize to cell_size
Save new args

This saves cell size, spacing, and colors
Line up bounding-box properly

- fix bug where too much spacing meant square clicks were not properly
  calculated
Add say method

- new outlet which outputs 1 if say cell is toggled, 0 otherwise
Move to tglgrid.tcl file
Fix erase for second outlet
Add rtglgrid, row-wise grid
Add csay and rsay to output specific col/row
Add size message for programmatic re-size
Fix bad off-by-one on output list
Save proper creation name

- rtglgrid restores properly
Update help for new features

- and make it COLORFUL!
Handle the togglestring better

- allow float arg so we can save an empty grid, and have creation allow
  all toggled or all un-toggled
Update help for new toggled argument
Change default scale