Improve division edit instructions.

Provide links to our different guides, shorten sentences and make it more friendly.
Provide slightly different copy when the division has been edited
add section with collumn width
Always refer to division summary not division description
remove negative reference to debate text
Merge branch 'test' into division_edit_text
update house_name helper call
Merge branch 'test' into division_edit_text

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