[Gemfile] redcarpet
integrate redcarpet into Nisetegami::Template
integrate redcarpet into AR Template Resolver
additional specs
Separate handler For Liquid + Markdown, various fixes
refactored render_* methods
do not filter HTML in markdown
Nisetegami::Template#template_handler_for => #handler_for
resolve template in resolver, not in AR model
use proper format in Nisetegami::Template#render_* methods