zshrc: fix comments
vimrc: fix 'jk' related comments
vimrc: add two leader based commands (,m & ,c)
gitconfig: add simplified and pretty log aliases
completion.zsh: fix ls completion for valid paths
prompt.zsh: rename variables to avoid conflicts
completion.zsh: disable options I don't understand
completion.zsh: minor whitespace fix
bindkeys.zsh: remove some unused options
bindkeys.zsh: enable vim mode and do some cleanup
prompt.zsh: change prompt depending on vim mode