Add TOC-support to redcarpet.rb
Changes suggested by bobthecow
Redcarpet test case for :with_toc => true
Merge branch 'master' of git://github.com/dwoll/nanoc into dwoll-master

Conflicts:
	lib/nanoc/filters/redcarpet.rb
	test/filters/test_redcarpet.rb
Merge branch 'dwoll-master'