Highlight policy description

fixes #439
move the policy edit link out of the vote navigation group

Group the edit link with the new policy link
remove overlapping margin from h1 in page-header
Move policy actions out of reading line

closes #499

The policy index will probably need special handling to 'on-board; citizens to contributing policies. For now, this just makes them consistant.
Remove explainer links from policy show

This becomes repetitive once you know what policies are. This information should be available on request somewhere.
explain 'division' before division list.
match policies#detail view page-header to #show #index
Merge branch 'test' into reorganise_policy_header

Conflicts:
	spec/fixtures/static_pages/policies/1.html
	spec/fixtures/static_pages/policies/2.html
	spec/fixtures/static_pages/policies/2_2.html
	spec/fixtures/static_pages/policies/2_3.html
	spec/fixtures/static_pages/policy.php?id=1&display=motions.html
	spec/fixtures/static_pages/policy.php?id=1.html
	spec/fixtures/static_pages/policy.php?id=2&display=motions.html
	spec/fixtures/static_pages/policy.php?id=2.html
Merge pull request #451 from openaustralia/reorganise_policy_header

Reorganise policy header
Merge branch 'test' into aggrigate_division_title_policy_votes

Conflicts:
	app/assets/stylesheets/application.css.scss
	spec/fixtures/static_pages/policies/1.html
	spec/fixtures/static_pages/policies/2.html
	spec/fixtures/static_pages/policies/2_2.html
	spec/fixtures/static_pages/policies/2_3.html
	spec/fixtures/static_pages/policy.php?id=1.html
	spec/fixtures/static_pages/policy.php?id=2.html