enable default layout option for post pages
use RbConfig instead of deprecated Config
skip page if draft front-matter attribute is true
fix missing disqus_identifier, add disqus spec
handle case when using detached branch (as Travis CI does)
remove dependency on test execution order
use Asciidoctor to render AsciiDoc by default

- allow the site config asciidoc.engine to control which engine is used
- set default engine to asciidoctor
- load required library lazily
- add test to ensure asciidoctor is loaded properly
- fix the call to the asciidoc system command (but leave test disabled)
Adding 'selected_tag' as an argument to the paginator

This 'selected_tag' variable becomes available in the page context if
the page is generated by the tagger. This enables the generated page
to display the current tag in the page body.

For example, if /news/tags/awestruct/index.html is generated, the page
can display somewhere in its body that theselected tag is: "awestruct"
Merge pull request #191 from mojavelinux/page-draft

Skip page if draft front-matter attribute is true
Merge pull request #189 from mojavelinux/default-post-layout

Enable default layout option for post pages
Merge pull request #190 from mojavelinux/rbconfig

Use RbConfig instead of deprecated Config
Merge pull request #193 from mojavelinux/disqus-identifier-fix

fix missing disqus_identifier, add disqus spec
Merge pull request #194 from mojavelinux/github-pages-checkout-fix

Handle case when using detached branch (as Travis CI does)
Merge pull request #197 from mojavelinux/asciidoctor

Use Asciidoctor to render AsciiDoc by default
Removing '.project' from '.gitignore'
Merge pull request #199 from xcoulon/master

Adding a 'selected_tag' variable and fixing URLs
Downgrade therubyracer to 0.10.0 and remove libv8 from the Gemfile.
Removing the use of @{site.base_url} in the paginator as it seems
that the 'site' variable is not available during the call to the
links() function.
Merge pull request #200 from xcoulon/master

Removing use of #{site.base_url} in the paginator
Fixed a broken asciidoctor render test