Add support for blogs entries (files) with extensions:   - previously hardcoded without extensions,   - now with extensions: .htm, .html, .md, .mdtext, .txtile, .textile, .rstext, .rst
Add support for blogs entries (files) with extensions:
  - previously hardcoded without extensions,
  - now with extensions: .htm, .html, .md, .mdtext, .txtile, .textile, .rstext, .rst

_PostRenderer
  - pass 'post' values to a template resource resources/post.html for rendering

samtaufa/countershape,cortesi/countershape,samtaufa/countershape,cortesi/countershape,mhils/countershape,mhils/countershape