Markdown Preview

* Added lib/MarkdownWriter, utility module for dealing with markdown
* Added Api::UtilityController, to be used for miscellaneous API
  endpoints not related to any models
Merge branch 'master' into api-markdown-preview

Conflicts:
	config/routes.rb
Eliminate use of require for MarkdownWriter
Merge pull request #108 from Eduki/api-markdown-preview

API Markdown Preview