Use %placeholder for streching examples.
Added support for WOFF2 file types in the font-files helper function.

Change-Id: I76d2004eeace97b96826ab6d9d6df9242ba78d7e
Fixes #1257 - Brings back support for old webkit gradient syntax

* Missing support for radial gradient in old webkit gradient syntax
Adds folder to test cleanup rake task
Fix compass stats commands.

Closes #1750.
Merge remote-tracking branch 'eddie/chore/add_support_old_webkit_gradient'
Fix bugs in the sass adapters for configuration.

Fixes #1741.
Rewrite the main help page
Fix #1759 - Set full exception true in compile watch
Merge pull request #1765 from eddie-ruva/bug/full_exception_watch

Fix #1759 - Set full exception true in compile watch
Change icon -> my-icons for all examples in this tutorial.
Allow md5sum of files for use by asset_cache_busters in sass.
These options should have been marked as read-only.
Document compass-core
1.0 blog post.
OMG
Fix broken link.
Fix references to the old doc-src directory in the docs.
Replace cornell with linkedin on the homepage.
Merge pull request #1632 from barraponto/stretching-placeholder

Using extend-only selectors for stretching examples