Fixes #1483

It is helpful if the pipe is still inserted by the linkwizard when there
is no title. This increases usability for beginners.

Removed extraneous whitespace to eliminate errors reported by the
Squiz.WhiteSpace.SuperfluousWhitespace sniff.

As reported in https://forum.dokuwiki.org/thread/9988
the previous implementation can not handle the situation of use the
linkwiz more than once. Now you can use in you toolbar plugin
    'type' => 'linkwiz'
to make use of the handy Linkwizard for choosing the wiki pages.

fixed link wizard being appended to every div.dokuwiki (FS#2395) and changed div.dokuwiki to just .dokuwiki (some templates have the class in the body)

IE8 can't substr() with negative offsets.

This reverts commit ba6c070e.
This reverts commit 92351008.

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Fixes a problem with the link wizard in MSIE6

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Note: development is part of ICKE 2.0 project
      http://www.icke-projekt.de

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This adds a new link wizard to the toolbar which helps users to find the page the want to link to.

Pages can be found by a simple page name search or by browsing the
existing namespaces.

This is the first checkin. Some cleanup and MSIE compatibility checks
remain.

note: development was part of the ICKE 2.0 project see
      http://www.icke-projekt.de for info

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