Indefero's version is now noted in src/IDF/version.php;
just before a release is made, the '-dev' is removed and
after the release is made, the version should be increased and
'-dev' should be added back to denote that the development
for the next version started.
The revision identifier is automatically set when an archive
is created and is based on the revision that the archive creator
gave to git-archive(1). If people follow development, we try to
get the current deployed version with git-log(1) and if that
fails as well, the revision is determined to be 'unknown'.
Version and revision are then rendered as HTML meta tags in
the header of each template. (All this is done by the new
{appversion} tag.)
