requirements and more ignoring

Requirements had excess entries. Also moved output to gitignore. We
won't need the output folder to be stored on github.  The amount of
noise will irritate me.
Merge remote-tracking branch 'origin/master'

Conflicts:
	output/pages/devday.html
	output/pages/developer.html
	output/pages/sputnik.html
	output/pages/telephone-replacement-strategy.html