Minimal browser example

| browser  dict |
dict := Dictionary new.
dict at: 1 put: 'uno'.
dict at: 2 put: 'dos'.
browser := GLMTabulator  new
         title: 'Minimal test'.
browser column: #keys; column: #values.
browser transmit
         to: #keys;
         andShow: [:k | k list display: #keys ].
browser transmit
         from: #keys;
         to: #values;
         andShow: [:v | v text display: [ :key | dict at: key ]  ].
browser transmit
    from: #values port: #entity;
    from: #values port: #text;
    when: [ :key :text | text notNil ];
    to: #values port: #nirvana;
    transformed: [ :key :text | dict at: key put: text ].
browser openOn: dict