abcl server support (Andras Simon, lightly hacked but untested by me), add package names in examples (Garrett Rooney)

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- accept declarations in body of with-server
- documentation: make function descriptions resemble CLHS; create index.

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make reuse-address default.  add nonfunctional server support for clisp: see https://sourceforge.net/tracker/index.php?func=detail&aid=1056819&group_id=1355&atid=101355

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