Goodreads Half-Stars and Rating Tags

Converts selected tags on GoodReads into rating images (such as tags with half-star ratings).

Goodreads as a site does not provide the ability to rate with half-stars. This is a workaround for that using tags. These do not replace the regular whole-star ratings, they are used in addition via the tag shelves.

Info:
* The rating scale is from 0 to 5 with increments of 0.25

* The tag name format is as "rating-TYPE-RATING" where TYPE is "stars" or "clouds" and RATING is "0-0" through "5-0"

* Various other tag rating formats are support for convenience ("4-half-stars", "four-and-one-half", etc)

* Hyphens are used instead of decimal places for half-star/cloud ratings since the period character (".") is not allowed in tags

* Rating images are intentionally not displayed in the add-tag popup area so that it is easier to see auto-complete their text names

Examples:
* For a 3.5 star rating, use a tag named "stars-3-5"
* For a 5.0 cloud rating, use a tag named "clouds-5-0"
* Or, you can prefix labels to the rating, such as "goodness-stars-3-5" or "badness-stars-3-5", etc