Move 'after creation' text to after new policy form

fixes #762
Add a 'style-guidish' sentence to the lead of policies#new

fixes #748
update tests
Use active voice
Merge branch 'test' into policies_new

Conflicts:
	spec/fixtures/static_pages/account/wiki.php?type=motion&date=2009-11-25&number=8&house=senate&rr=%2Fdivision.php%3Fdate%3D2009-11-25%26number%3D8%26house%3Dsenate.html
	spec/fixtures/static_pages/account/wiki.php?type=motion&date=2013-03-14&number=1&house=representatives&rr=%2Fdivision.php%3Fdate%3D2013-03-14%26number%3D1%26house%3Drepresentatives.html
	spec/fixtures/static_pages/project/research.php.html