Add SHORTENER_DICTIONARY setting #29
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This PR adds an optional
SHORTENER_DICTIONARYsetting to the app. This allows the user to have control over which characters will be used when a shortcode is created. If no dictionary is provided, the usual character set (lowercase letters, uppercase letters, digits, no confusing digits) will be used.Steps to test
Set the
SHORTENER_DICTIONARYsetting to"abcde"and run a few tests. Verify that the generated shortcodes are composed only by the "abcde" lettersRemove the
SHORTENER_DICTIONARYsetting and run a few more tests. Verify that the generated shortcodes follow the same usual pattern of django-link-shortener