am a320b99a: am 498d710a: modify sample template and add new css/script for...

am a320b99a: am 498d710a: modify sample template and add new css/script for new numbered code. The line numbers are included inside the <pre> block initially, but hidden, so this script moves the numbers to a separate block on the left and makes them non-selectable. A

* commit 'a320b99a':
  modify sample template and add new css/script for new numbered code. The line numbers are included inside the <pre> block initially, but hidden, so this script moves the numbers to a separate block on the left and makes them non-selectable. Also includes script for features like single-click to highlight a line of code and double-click to invoke the link for that line.