Update tmux.conf
Add new line to info function
Fix bugs in install scripts
Make uploading to keychain.io optional
Check if repo is existing in zsh/install.sh
Fix a bug in bootstrap with whitespace in names
Use zsh in scripts to support lists
Make aptitude update optional
Change default answer in setup_ssh
Add nodejs to dependencies
Make git/install.sh executable
Install ack from brew instead of source
Replace which tests with hash

See: http://stackoverflow.com/questions/592620/how-to-check-if-a-program-exists-from-a-bash-script
Update sublime topic