Set release date of 3.6.9 to today
Complete release notes for 3.6.9
Fix raising piper errors
Specify default encoding
Mock HTTP responses with VCR
Merge pull request #428 from nanoc/bug/specify-default-encoding

Specify default encoding
Merge pull request #429 from nanoc/use-vcr-in-tests

Mock HTTP responses with VCR
Merge branch 'release-3.6.x' into bug/fix-jruby-failures

Conflicts:
	Gemfile