Travis build on 2.0 and 2.1
Use a relative image path

This required for blogs that are not hosted at the root url of
their domain.
Merge pull request #418 from graaff/fix-absolute-image-path

Use a relative image path
Refactor duplication in notes controller

Clean spec
Just clean syntax on specs
Limit set of allowed comment parameters
Merge pull request #414 from nicolasblanco/travis21

Travis build on 2.0 and 2.1
Run db setup inside bundle on Travis CI
Excerpt is not editable anymore. Drop it even for full_article_content partial. Close #423
Upgrade to Rails 3.2.17
Upgrade to Rails 3.2.18
Remove useless gems

- require_relative is for use in Ruby 1.8
- iconv is not used
Fix indenting
Remove useless #map
Make Travis CI validate the rendered feeds
Avoid symbolizing by stringifying instead