Update sphinx from 1.5.6 to 1.6.1 (#2478)
Update sphinx from 1.5.6 to 1.6.1 (#2478)


tojonmz/treeherder,edmorley/treeherder,tojon/treeherder,edmorley/treeherder,KWierso/treeherder,tojonmz/treeherder,KWierso/treeherder,KWierso/treeherder,tojonmz/treeherder,tojon/treeherder,edmorley/treeherder,KWierso/treeherder,tojon/treeherder,edmorley/treeherder,tojonmz/treeherder,tojon/treeherder,tojonmz/treeherder,tojonmz/treeherder