routes.rb: fixed error in placement of end
Added SimpleForm gem

Simple_form is redundant with Formtastic, which is built into the Surveyor gemset,
however, the application from which surveyor_gui borrows code used Simple_form.
As a matter of expediency, we are using some of the views relying on simple_form
to get Surveyor_gui up and running quickly.  Later refactoring will likely remove
it (and possibly server side views in favor of a javascript client framework like
Ember).

	Gemfile: added simple_form gem
	simple_form.rb: part of simple_form initialization
	simple_form.en.yml: part of simple_form initialization
Extended Surveyor table for additional functionality

	add_original_choice_to_answers.rb: original_choice is a new field
	needed to allow users to switch questions from the types that
	require picking from a list, to the types that don't

	add_blob_to_responses.rb: a string needed for the carrierwave gem
	so that questions can include a blob response.  This allows a
	survey to incorporate file uploads in survey responses.

	add_unique_index_to_reponses.rb: creates a unique index that
	prevents a user from submitting two responses to a survey.
	assumes that the response also has a user_id column.

	add_modifiable_to_survey: supports the ability to include
	non-modifiable sections in survey templates, so that
	surveys built over that template must always include
	particular sections.

	add_modifiable_to_questions: supports the ability to include
	non-modifiable questions in survey templates.

	add_dynamically_generate_to_questions: supports an ability to
	dynamically generate survey content based on the containing application.
	This capability can be used to generate a list of possible answers.
	The list is generated only once the first time any user takes the survey.
	E.g., pick which of these products you would recommend to a friend.
	The list of products might be generated from the application in which the
	survey is embedded.
fixed gitignore to get rid of logs
Added Carrierwave gem to support blobs

	Gemfile: added gem 'carrierwave'
	blob_uploader.rb: configuration for blob field using carrierwave
Extended simple_form data types

	currency_input.rb
	date_picker_input.rb
	percent_input.rb
Added simple_form configuration

	simple_form.rb
	simple_form.en.yml
Added view files to edit the surveys

	surveyform_helper.rb
	edit.html.erb
	_form.html.erb
	_survey_section_fields.html.erb
	_question_section.html.erb
	_question_fields.html.erb