/**
* @class Roo.bootstrap.Component
* @extends Roo.Component
+ * @abstract
+ * @children Roo.bootstrap.Component
* Bootstrap Component base class
* @cfg {String} cls css class
* @cfg {String} style any extra css
/**
* @class Roo.bootstrap.Column
* @extends Roo.bootstrap.Component
+ * @children Roo.bootstrap.Component
* Bootstrap Column class
* @cfg {Number} xs colspan out of 12 for mobile-sized screens or 0 for hidden
* @cfg {Number} sm colspan out of 12 for tablet-sized screens or 0 for hidden