Add event asm_search_query_before to modify queries before executing them
Add a query modifier to add facetting parameters to a query
Add a model class for a Solr response
Manually keep Solr query
Keep query response in registry

By keeping the query in the registry it can later easily be re-used by other components.
Adjust braces to match Magento conventions
Add models for facet and facet option
Create facets from facet fields in response
Add facets template and block
Enable facets block
Add formatting
Use Apache Solr 4.7.1
Use Apache Tomcat 7.0.53
Use Varien_Object for Facet and FacetOption models
Add methods to build add/remove filter URLs
Use Magento dl/dt/dd layered navigation markup structure
Detect multi-value fields from attribute property is_configurable
Use attribute to field name map
Add facet.mincount = 1
Link facet labels