Update example scripts

1. The scripts should not line-wrap the text manually.
2. Demonstrate batch syntax to put line breaks into a variable.

Result of two long discussions on ceylon/ceylon.formatter@7a100d4 and
ceylon/ceylon.formatter@ce28b1a with @quintesse and @sgalles.
Merge pull request #46 from lucaswerkmeister/updateScripts

Update example scripts