new configuration setting: HTML_LINKS
changed layout of top div
fixed some IE rendering problems
improved visualization of subscriber's log
changed interface of 'form_header' macros
moved interface and language selection to the top of the page
reverse order of subscriber's log entries
set explicit default values for UNSAFE_RM, PRETTY_NAMES, ALIAS_USER, HTML_LINKS, HTML_LANGUAGE, FILE_UPLOAD and DEFAULT_OPTIONS
HTML_CSS_FILE replaced by HTML_CSS_URL - it defaults to '/ezmlm-web.css'
added manpages for 'webusers' and 'ezmlmwebrc' file formats
added check for required settings
ignore 'taintness' of 'send' input data due to non-ascii characters in buttons' values
removed implementation of 'ui_set'
fixed gnupg support
improved gettext support (still needs some testing)
Encode module is now optional (instead of being required)
