Fiddle with iTerm sizes
Fiddle with iTerm sizes again
Fiddle with iTerm sizes again 02
Vim and zsh

* Change key for highlight to F6 from F4 (so Fn not needed on Mac keyb)
* Add a function to zshrc to remind me not to type 'cd' when not needed
* Try molokai Vim colourscheme
* Add 'tddh' zsh command to look at TDD commit history
* Add 'update' target to Make file to update zsh completions