vimrc- use a submodule for pathogen
vim,tmux,setup.sh- add the powerline status line plugin

fonts/PowerlineSymbols.otf and fonts.conf.d/10-powerline-symbols.conf
are from
https://powerline.readthedocs.org/en/latest/installation/linux.html#font-installation.
vim- add the fugitive plugin
vim- add syntastic
vimrc- enable switching after making changes
vimrc- make , the leader