Add the $doc variable to all renderers

In p_render() it is assumed that all renderers have a $doc variable

Replace = & by =& as the former isn't understood by IntelliJ IDEA

Fixed and extended PHPDoc comments and added additional @var comments

another call_user_func warning fix

replaced use of basename() with utf8_basename() FS#2015

xml compatibility fixes (mainly entities to unicode conversions)

Input wrapper for html forms

renamed smiley image class to 'icon' (FS#1970)

removed align attribute from images and inserted them only in the feed (FS#1351)

can someone with better regex skills please revise this?

use abbr instead of deprecated acronym

removed names from footnotes and removed anchors from headings altogether

Parser: Allow parser to fully recognize windows share links with a hyphen character in it
(Currently, the clickable link stops before a hyphen character)

Fix a stupid typo

fixed .curid to always highlight the current ID of the main/viewed page

Revert 4a24b459, thus fixing FETCH_MEDIA_STATUS for missing files (FS#2405)

Slight fix to match current version.

Rework for missing commit 08162f005f3ced0555de590dc1a53155af99d998

Rewark for missing commit 9aa0e6c6087e616511fc95d1650ca9b608edece8

replace unset with array_pop

unset does not reset the Array's internal pointer which messes up later
calls. array_pop is still much faster than array_splice

fix off-by-one error

added the missing bit to my last commit

Fix performance issue in close_paragraph

Looks like a for loop is faster than array_splice

cleanup of handler.php

The file contained a few DOS lineendings and trailing spaces

issue #46 Render links to missing media files as link to the media manager

Revert "Only allow known protocols in RSS links"

This reverts commit 1ca2719c7488662ebd7964c0d026e0890f923ee9 as it is
now superseeded by a6b82e436e3d68a42a6556165d6aaf9249db44cd