Sparse 1.02b released

A new release includes a lot of code cleanup and some great new features:

* The sqlnavigation tag. You can now print a complete set of page links to navigate amongst your data, and fine-tune which links appear.
* Added the query attribute to enumsets; you can now populate them on the fly from your database.
* PHP code can now be executed whenever and wherever you like, and includes the ability to conditionally execute Sparse code.
* Added a new sqlfield calendar type and the calType attribute.