Initial commit for Sku indexing
Add Sku based documents to Solr server
Search Solr for Skus
Search Solr for Skus
Search Solr by Skus
Search Solr by Skus
Search Solr for Skus
Search Solr by Sku
Merged develop into sku_browsing
Make sku browsing not the default, in favor of product browsing.
Merged develop into sku_browsing. Fixed merge conflicts.
#827. Various changes to get sku searching / browsing working.
#827. Ensure that skus are not indexed unless they have product options
or they are default skus, unless their owning product is allowed to be
sold without options.
#827. Fixed and moved logic to determine if a default sku should be
indexed.
#827. Added a more reasonable check for additional skus rather than
relying on product options.
#827. Adding similar support for outOfStockSkus as there is for
"outOfStockProducts".
#827.  Fixed pagination for sku browsing.
#827.  Fixed search result number for sku browsing.
#827.  Fixed search bar for sku browsing.
#827.  Update initial indexing debug message for sku browsing.