Updating Gemfile and Gemfile.lock.

Using jekyll-assets upstream gem which pulled my request.

Run bundle update.
Update for jekyll-assets 0.9.1.

It officially supports bootstrap-sass.
Update for bootstrap-sass 3.2.0.1.
Updating about page.

Minor fix to conform to the new markdown filter.
Adding a new post for updates.
Updating .gitignore for .sass-cache.