Use default tmux prefix

too much confusion across team mates
Moving to Java 8
Merge branch 'master' of github.com:oschrenk/dotfiles

* 'master' of github.com:oschrenk/dotfiles:
  Clojure configuration
  Update powerline configuration
  Remove unused resolver and plugins
  Configure Rainbow Parentheses
  fish: I don't use sprunge anymore
  tmux: rearrange scrolling