[tmux_session] Move to home
[zshrc] Increase command history to 30000
[zshrc] Add key bindings to special keys

Use zkbd so that when zsh encounter another terminal, it will prompt the user
to enter the special keys in those terminal. This would also make it more
flexible to changes and much more readable.
[zkbd] Add key definition files
Merge branch 'master' into netbook