 Merge branch 'changelog-base64' into 'master'
 Merge branch 'changelog-base64' into 'master'

Changelog Base64

Add O'Reilly sponsorship in CHANGELOG

8thcolor/rubyconfau2015-sadr,8thcolor/eurucamp2014-htdsadr,8thcolor/eurucamp2014-htdsadr,8thcolor/eurucamp2014-htdsadr,8thcolor/rubyconfau2015-sadr,8thcolor/rubyconfau2015-sadr