RFR: 8288493: Document JDK specific system properties in jdk.httpserver

[Michael McMahon]

Hi,

This change adds some documentation to the jdk.httpserver module-info listing all of the system properties used by the implementation and which can be set by users.

CSR at https://bugs.openjdk.org/browse/JDK-8295667

Thanks,
Michael.

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Commit messages:
 - update TCP_NODELAY link
 - added TCP_NODELAY link
 - remove unexpected .swp file
 - update to jdk.httpserver module-info

Changes: https://git.openjdk.org/jdk/pull/10766/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10766&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8288493
  Stats: 56 lines in 1 file changed: 55 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/10766.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10766/head:pull/10766

PR: https://git.openjdk.org/jdk/pull/10766