vimrc: use correct name for font, and other minor edits.
zsh: plugins: add +golang -gitfast.
zsh: export vim as EDITOR/VISUAL.
zsh: alias make to multiple jobs.
i3: enable workspace_auto_back_and_forth.
i3: bind kb shortcut to start screensaver.
i3: bind kb shortcut to run chrome.
i3: bind kb shortcut to run nautilus.