move sign in and sign out links to the right, as more intuitive
move sign in and sign out links to the right, as more intuitive

beanieboi/rgsoc-teams,michaelem/rgsoc-teams,ramonh/rgsoc-teams,michaelem/rgsoc-teams,beanieboi/rgsoc-teams,michaelem/rgsoc-teams,rails-girls-summer-of-code/rgsoc-teams,beanieboi/rgsoc-teams,ramonh/rgsoc-teams,TeamCheesy/rgsoc-teams,rails-girls-summer-of-code/rgsoc-teams,ramonh/rgsoc-teams,TeamCheesy/rgsoc-teams,TeamCheesy/rgsoc-teams,rails-girls-summer-of-code/rgsoc-teams