* move checks to __construct so they can be run on $_POST data
and don't create malformed filter urls
* if we received malformed $_GET params, build new params and reload
* do not store error state in cache
* cleanup
* fix cache id collision when category == dbTypeId for a given dbType
* increment version number to invalidate existing caches
* maps endpoint doesn't need caching. It is entirely static content.
* split global.js into its components, so it can be reasonably processed by setup
* make reputation requirements configurable
* move Markup and Locale back into global.js (removed associated build scripts)
* extend Icon to display iconId in lightbox popup
