* zshrc: Removing shtgz(). shtar() does the same, just portably.
* zshrc: Remove broken ytdl() function.
* zshrc: Typo fixes
* zshrc: Remove aliases ips and check_dpkg_running.
* zshrc: Removing shtgz(). shtar() does the same, just portably.
* zshrc: Remove broken ytdl() function.
* zshrc: Typo fixes
* zshrc: Remove aliases ips and check_dpkg_running.