[Rev 01] 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 incrementally with four additional commits since the last revision:

 - 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

-------------

Changes:
  - all: https://git.openjdk.java.net/guide/pull/9/files
  - new: https://git.openjdk.java.net/guide/pull/9/files/d6cf9f1b..7c465a48

Webrevs:
 - full: https://webrevs.openjdk.java.net/guide/9/webrev.01
 - incr: https://webrevs.openjdk.java.net/guide/9/webrev.00-01

  Stats: 66 lines in 4 files changed: 42 ins; 2 del; 22 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