converted first add question button to unobtrusive javascript

Followed same approach as the last two buttons.  Along the way,
found an unrelated issue when adding a new question.  The change
from commit e8d1a9, which used ajax to include/remove nested
answer attributes on the question editor, broke adding new questions.
The routes for render_picks_partial/render_no_picks_partial assumed
a question_id was available, which is not the case for new questions.
Changed the routing.

	app/controllers/questions_controller.rb - allowed for the need to create a new
	question in the render_picks_partial and render_no_picks_partial methods

	app/views/layouts/application.html.erb - accidentally changed whitespacing

	app/views/surveyforms/_survey_section_fields.html.erb - removed obtrusive javascript from first add question button
	and removed some hard coded css

	config/routes.rb - changed routing for render_picks_partial and render_no_picks_partial

	lib/assets/javascripts/surveyor_gui/surveyor_gui.js - added javascript for add_question button

	lib/assets/stylesheets/surveyor_gui.sass - added css for the add_question button