app/assets/javascripts/ckeditor/config.js
CKEDITOR.editorConfig = function(config) {
config.allowedContent = true;
config.entities = false;
config.language = 'en';
config.protectedSource.push( /<%[\s\S]*?%>/g );
config.toolbar = [
{ name: 'undo', groups: [ 'undo' ], items: [ 'Undo', 'Redo' ] },
{ name: 'links', items: [ 'Link', 'Unlink' ] },
{ name: 'insert', items: [ 'Image', 'Table', 'HorizontalRule' ] },
{ name: 'paragraph', groups: [ 'list' ], items: [ 'NumberedList', 'BulletedList' ] },
{ name: 'styles', items: [ 'Format' ] },
{ name: 'basicstyles', groups: [ 'basicstyles', 'cleanup' ], items: [ 'Bold', 'Italic', 'Underline' ] },
{ name: 'editing', groups: [ 'editing' ], items: [ 'Source', 'Maximize' ] }
];
config.toolbar_Articles = [
{ name: 'undo', groups: [ 'undo' ], items: [ 'Undo', 'Redo' ] },
{ name: 'links', items: [ 'Link', 'Unlink' ] },
{ name: 'insert', items: [ 'Image', 'Table', 'HorizontalRule' ] },
{ name: 'paragraph', groups: [ 'list' ], items: [ 'NumberedList', 'BulletedList' ] },
{ name: 'styles', items: [ 'Styles', 'Format', 'Font', 'FontSize' ] },
{ name: 'colors', items: [ 'TextColor', 'BGColor' ] },
{ name: 'basicstyles', groups: [ 'basicstyles', 'cleanup' ], items: [ 'Bold', 'Italic', 'Underline', 'Maximize' ] }
];
};