Refactor and add more Capybara tests

Testing Ideas, Keywords listing and Navibar
Tests now use fabricators
Merge branch 'development3' of github.com:hwikgren/appideas into development3
List all keywords in Idea details view
Merge branch 'development3' of github.com:hwikgren/appideas into development
Merge branch 'development3' of github.com:hwikgren/appideas into development
Scaffolds.css away
Fixed CSSs
Ideas ordered from new to old
Merge branch 'development3' of github.com:hwikgren/appideas into development2
Admin's ideas from new to old too
Merge branch 'development3' of github.com:hwikgren/appideas into development
Show keywords of an idea as on front page and respond to missing fields in new Idea form with error messages
Merge branch 'development' of https://github.com/tktl-app-ideas/appideas into development

Conflicts:
	spec/fabricators/keyword_fabricator.rb
	spec/features/idea/show.html.haml_spec.rb
	spec/features/index.html.haml_spec.rb
Merge pull request #77 from hwikgren/development3

Small changes to layout