Tmux update

Small changes to tmux keybindings, C-a will go through panes now,
windows are scrolled using a only, added r keybind to reload tmux.conf
incase i needed to

start-tmux script created to handle startup, it detected if a session
named after the user is running, if it is it attaches to it, else it
creates it and runs some startup commands then attaches to it.

modified awesomerc to use new startup script.