[Rev 02] RFR: Remove version numbering

[Jesper Wilhelmsson]

> Removed release notes and version numbers from all pages. Added a footer which displays file modification date and time
> instead. The modification time is currently only placed at the bottom of each file, while the version number was
> present both at the top and at the bottom. This was made on purpose. Please leave a comment if you disagree with that
> decision. It's a simple makefile change to add it at the top as well.

Jesper Wilhelmsson has updated the pull request with a new target base due to a merge or a rebase. The pull request now
contains six commits:

 - Merge branch 'master' into updates
 - Use change hash instead of date in footer
 - Created README for the project
   
   Reviewed-by: iris
 - Cleaned up the noreg table
   
   Reviewed-by: iris
 - Usign perl instead of sed
   
   Reviewed-by: iris
 - Remove version numbering

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Changes: https://git.openjdk.java.net/guide/pull/9/files
 Webrev: https://webrevs.openjdk.java.net/guide/9/webrev.02
  Stats: 160 lines in 20 files changed: 7 ins; 152 del; 1 mod
  Patch: https://git.openjdk.java.net/guide/pull/9.diff
  Fetch: git fetch https://git.openjdk.java.net/guide pull/9/head:pull/9

PR: https://git.openjdk.java.net/guide/pull/9