Attention: $lang['register'] has been renamed to $lang['btn_register'],
anyone using that in any plugin or template should adjust it.

A search equivalent to a new ID so it should show up in the bread
crumbs.

Not sure if this sympol is the best to use. I'm open for different
suggestions.

Template auhtors still can overwrite the symbol of course.

This makes sure that the indexer is also called for hidden pages so they
aren't missing in the title index and digest subscriptions work for
them, too. Hidden pages are already filtered from the search results.

This reverts commit 48714142.
Additionally there is a new fix for FS#2107 that doesn't introduce a lot
of checks but instead ensures that the configuration option can't be set
to negative values when the configuration manager is used.

As of VIM 7.3 it is no longer possible to specify the encoding in the
modeline. This gives an error message whenever such a file is opened,
thus this commit removes the enc setting from the modeline.

This fixes an infinite loop in breadcrumbs() and makes the behaviors in
all places where breadcrumbs are used consistent so that non-numeric
values, values < 0 and 0 are treated the same way.

This avoids breaking old templates

See http://adrianlang.de/ada/html-script-charset

FS#1878: Hide Dokuwiki version information from metadata and only show it to admins and manager in do=check. Also protected meta files README, VERSION and COPYING additionally to .ht*

This patch implements what Adrian's patch "Hide logout button if auth
backend cannot logout" intended to do.

The 'logoff' capability was used to decide if a special method called
$auth->logOff() should be called when the user logs out, not if the
backend supports logouts at all. This was a superflous capability since
an empty logOff() method is implemented in the base class anyway - it
doesn't hurt to always call the method.

The 'logoff' capability is now deprecated. Backends who want to do
actions on logout simply need to overwrite logOff().

A new capability 'logout' was added which defaults to true. Backends
that can't logoff the user (eg. because they use some automatic
login/logoff mechanism) can set this to false.

Probably makes sense to add a 'login' capability as well...

Behavioural changes:
  * buttons
    * no 'do=show' but clean URLs (show and back buttons)
    * the alias 'subscription' for subscribe buttons is now available
  * links
    * draft link has class 'draft', not 'edit'
    * revisions link has class 'revs', not 'revisions'
  * both
    * 'revision' is added as an alias for 'history'

These changes were mainly introduced to reduce the differences between
links and buttons.

This introduces a new function called tpl_flush() which should be used
by template authors in favor of the PHP flush() method.

It looks like when there is no "do=" parameter to doku.php, "show" is
assumed. When clean URLs are used (via mod_rewrite), regular
page-to-page links hence just link to "pagename". However, if you "Show
pagesource", then "Show page", the browser is sent back to
"pagename?do=show" instead of just "pagename". This seems like a "less
clean" URL to me.

So, the attached patch removes "do=show" from URLs in this case, so
cleaner URLs are used.