Drupal coding standards

This module could use small fixes to bring it inline with the Drupal coding standards, particularly:

• Replace all tabs with two spaces,
• Placing a space between control words and the proceeding parenthesis, e.g. instead of "if()" it should be "if ()",
• The opening brace on control structures should be at the end of the first line, not on a separate line of its own,
• Add a space on both sides of both the assignment operator ("=") and the comparison operators ("=="), e.g. instead of "$foo='bar';" it should be "$foo = 'bar';",
• Variable names need to use underlines to separate word portions, rather than camelCase, e.g. "$foo_bar" instead of "$fooBar".

A few other recommendations:

• All output should be wrapped in theme functions,
• You don't have to wrap drupal_get_path() with url(), i.e. it's sufficient to do this: $imagePath = drupal_get_path('module', 'freetobook_widget');
• In the .info file you spelled "Drupal" incorrectly ;-)

Good work!