 Merge branch 'remove-gem-button' into 'master'
 Merge branch 'remove-gem-button' into 'master'

Remove Gem Button

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