'Taglist: Exuberant ctags (http://ctags.sf.net) not found in PATH. Plugin is not loaded.' error in MacVim (Janus)

After launching MacVim you may get this annoying error message:
'Taglist: Exuberant ctags (http://ctags.sf.net) not found in PATH. Plugin is not loaded.'

To remove this you have to install ctags which you can download from http://ctags.sf.net.
After you unziped it, you have to set the Tlist_Ctags_Cmd variable in the .vimrc file to point to the ctags folder.

let Tlist_Ctags_Cmd = '/usr/local/bin/ctags'

After that you have to restart vim and the message should not pop up again.

Launching MacVim from Command line

Put this into your .profile or .zshrc file

function mvim { /Applications/MacVim.app/Contents/MacOS/Vim -g $*; } 

Then you can use 'mvim' in the command line.

The full explanation is in the MacVim Google Groups