vimrc: add unix (Ubuntu) location for zsh
vimrc: add termcap branch for Unix (Ubuntu)
vimrc: add <leader>b maps to wipe buffer
vimrc: change <leader>ov to open .vimrc in split
plug: enable Powerline plugin for Linux (Ubuntu)
install: add initial install.sh
vimrc: fix opening cursor on Linux

g:vitality_always_assume_iterm flag did the trick

Also: added double space between settings for each plugin