Note: we don't update for now the install.sgml file with the new version
number, as there are no other changes. We'll update the web site to
indicate that the current install.html document is valid for 1.2.3 too.

Reviewed-by: imsnah,ultrotter

Reviewed-by: ultrotter

In revision 459 I added a bug in the make dist rule in the sense that
the archive will include *all* of test/data directory, including the
.svn directory if it exists.

This patch fixes that problem and adds a distcheck hook that tests for
such errors in the future (files/directories matching the .svn and .git
patterns).

It also fixes a typo in the NEWS file.

Reviewed-by: imsnah

This a merge to trunk of revision 494.

Reviewed-by: imsnah

Reviewed-by: imsnah

Reviewed-by: imsnah

This patch does:
  - add drbd8 information to the docs (the new disk template, examples,
    etc.)
  - fixes a section header to make it more clear
  - update the NEWS file by changing format (format taken by looking at
    /usr/sharea/doc/*/NEWS.gz) and adding more information on changes
    since beta1

Reviewed-by: ultrotter

Reviewed-by: iustinp, ultrotter