8c09c7f39f
With the introduction of "pool-conn-name", documentation related to http-reuse was rendered more complex than already, notably with multiple cross-references between "pool-conn-name" and "sni" server keywords. Took the opportunity to improve all http-reuse related documentation. First, "http-reuse" keyword general purpose has been greatly expanded and reordered. Then, "pool-conn-name" and "sni" have been clarified, in particular the relation between them, with the foremost being an advanced usage to the default SSL SNI case in the context of http-reuse. Also update attach-srv rule documentation as its name parameter is directly linked to both "pool-conn-name" and "sni".