+ - added insert-unicode-char
+ - drop the check for
+ /usr/share/zsh/$ZSH_VERSION/functions/Prompts/promptinit and
+ /usr/share/zsh/$ZSH_VERSION/functions/Zle/url-quote-magic
+ because the check does not work for example with the zsh-beta
+ package. If you notice problems with the current code please
+ let me know.
+ * /etc/skel/.zshrc:
+ - added function ytdl (download video from youtube)
+ - work around non utf8 capable software in utf environment
+ using aliases for mrxvt, aterm and centericq
+ * /etc/zsh/*: improved documentation about startup of zsh