bump tilt requirement, unregister plaintext template. fixes #824
prep
changelog
Remove Rainpress pure ruby CSS compressor and simply use SCSS :)
Document livereload usage in config file
Suggest adding middleman-livereload to bundle
Added .idea dir to .gitignore

… just in case if somebody uses RubyMine to dev it.
Merge pull request #846 from argent-smith/master

Added .idea to .gitignore
add feature tests for markdown support in haml
Merge pull request #849 from stevenosloan/markdown_filter_in_haml

Markdown filter support for Haml 4
More agressively set the context for our custom Markdown renderer, and fall back if we still don't manage to get it right. Fixes #662.
Handle empty frontmatter without logging an exception
Undo my previous change, apparently it is no good
Fixes for alpha Sass versions
Minor performance fix to not double-compute metadata in directory_indexes.
Simplify frontmatter by removing its resource_list_manipulator
Fix a bunch of Ruby warnings, including a bug in the not_found method
Overhaul content-type handling, making it configurable via page/proxy commands as well as frontmatter with the 'content_type' parameter.

Now, users can set content type explicitly for their files in a number of ways, or rely on automatic file-extension content types. Proxied files default to automatic file-extension content types, but then fall back to the content type of the resource they proxy to. There is also a bug fixed around correctly setting content type inside send_file. Fixes #821.
Merge remote-tracking branch 'origin/3.0-stable'
Update changelog with changes on master since 3.0.13