This actually write all the key/value into the config.php.
The code in `writeAdminLisener()` is cleaner.
This is in prevision of new configuration options (e.g. plugin related)

Here the types added:
  * Flac / Ogg [1]
  * GZip / Tar / Tar+GZip
  * PDF / SVG / Tiff
  * JavaScript

Other little changes:
  * I changed the ordered to be alphabetical (by extension)
  * Using single quotes instead of double quotes for strings
  * Indentation

[1]: http://wiki.xiph.org/MIME_Types_and_File_Extensions
[2]: http://www.asciitable.it/mimetypes.asp

PHP function names is case-insensitive so this change isn't
intrusive but improve readability of the code.

PHP function names is case-insensitive so this change isn't
intrusive but improve readability of the code.

PHP function names is case-insensitive so this change isn't
intrusive but improve readability of the code.

PHP function names is case-insensitive so this change isn't
intrusive but improve readability of the code.

PHP function names is case-insensitive so this change isn't
intrusive but improve readability of the code.

In 'inc/templates/configform.php'
  * action attribute of form specified
  * put the hidden input in a div for validation

Conflicts:
	inc/MDB2/Driver/Function/pgsql.php
	inc/MDB2/Driver/Manager/mysql.php
	inc/MDB2/Driver/Reverse/pgsql.php
	inc/MDB2/Driver/mysql.php
	inc/lib_base.php

Conflicts:
	inc/lib_log.php

Conflicts:
	inc/HTTP/WebDAV/Server/Filesystem.php
	inc/lib_config.php
	inc/lib_log.php
	inc/lib_user.php
	inc/templates/adminform.php