The mail() function shouldn't be executed when no recipients are given.

Empty to, cc or bcc fields could lead to an Internal Server Error:
malformed header from script. Bad header=No recipient addresses found...

This ignores warnings because of the (intentionally) missing url
parameter for the constructor of SimplePie_File.

  * Move file to qsearch.js
  * Rename object to dw_qsearch
  * Remove unnecessary usage of Delay
  * Use $ prefix for jQuery objects
  * Fix result list hiding on click
  * Fix namespace shorting

  * Add var statement for dw_behaviour
  * Use live instead of click for smb share warnings

  * Remove jQuery to $ wrapper function
  * Add $ prefix for jQuery variables
  * Make some jQuery calls faster
  * Use slide animation

  * Removed "use strict" statement, since it does not work with our script file
    joining (the statement has to be the first in a file or function)
  * Make index a global object again to allow overriding and enhancing
  * Use prefix dw_ for index object
  * Reintroduce index.treeattach
  * Support deprecated index.toggle calling convention
  * Add $ prefix for jQuery variables
  * Use slide animation for freshly loaded sublists as well
  * Fix various errors

There were some index files that haven't been cleaned up, now also the
files of the metadata index are cleaned/removed when a clean is
requested.

This patch reduces the colorspace of GIF files and has optipng
optimization run on PNGs. Changes shouldn't be visible except in
filesizes.

in the local config cascade tree

This increases the indexer version in order to force a rebuild of the
search index in order to "repair" the search index that might contain
uppercase words

This reverts commit 1ca2719c as it is
now superseeded by a6b82e436e3d68a42a6556165d6aaf9249db44cd

This fixes a problem where JavaScript could be introduced through
specially crafted RSS feeds on a lower level than the commit from
yesterday (1ca2719c)

This also fixes a problem where JavaScript links could be introduced by
specifying it as an RSS URL: the resulting error message displays a
link to the broken feed URL. This patch makes sure there's no working
link for unknown protocols.