Minor revisions to calculator example - use grid-pane rather than table-pane to equalize button sizes, adjust default text style.
Minor revisions to calculator example - use grid-pane rather than
table-pane to equalize button sizes, adjust default text style.

antifuchs/mcclim,onixie/mcclim,swflint/McCLIM,slyrus/mcclim,swflint/McCLIM,onixie/mcclim,swflint/McCLIM,slyrus/mcclim,onixie/mcclim,antifuchs/mcclim