Smart quotes!

Closes #50

samples/embed_text.rb

@@ -72,7 +72,7 @@ end
 Squib::Deck.new(cards: 3) do
 
   embed_text = 'Take 1 :tool: and gain 2 :health:.'
-  text(str: embed_text, font: 'Sans', font_size: [18, 25, 32],
+  text(str: embed_text, font: 'Sans', font_size: [18, 32, 45],
        x: 0, y: 0, width: 180, height: 300, valign: :bottom,
        align: :left, ellipsize: false, justify: false, hint: :cyan) do |embed|
     embed.svg key: ':tool:',   width: 28, height: 28, file: 'spanner.svg'

samples/text_options.rb

@@ -23,12 +23,12 @@ Squib::Deck.new(width: 825, height: 1125, cards: 3) do
   text str: 'Font string sizes can be overridden per card.', x: 65, y: 350,
        font: 'Impact 36', font_size: [16, 20, 24]
 
-  text str: 'This text has fixed width, fixed height, center-aligned, middle-valigned, and has a red hint',
+  text str: 'This text has fixed width, fixed height, center-aligned, middle-valigned, has a red hint, and "smart quotes"',
        hint: :red,
        x: 65, y: 400,
        width: 300, height: 125,
-       align: :center, valign: 'MIDDLE', #case-insenstive strings allowed too.
-       font: 'Arial 18'
+       align: :center, valign: 'MIDDLE', # these can be specified with case-insenstive strings too
+       font: 'Serif 16', quotes: [:smart,:smart, :dumb]
 
   extents = text str: 'Ink extent return value',
        x: 65, y: 550,