Implement projects

Conflicts:
	.gitignore

* Work to get project_name
* Show the project on the front page

Conflicts:
	app/views/ideas/index.html.slim
	spec/features/list_ideas_spec.rb
	spec/features/support/page_models/sections.rb

* Assign a project at the time of creating a new idea

Conflicts:
	app/views/ideas/new.html.erb
	spec/features/add_new_idea_spec.rb

* Fix a merge gone wrong

* Revert to slim views
Merge pull request #39 from swalberg/14_brainstorms_v2

14 brainstorms v2