Update bootstrap-datetimepicker.js

Change the detection mode of the clear icon :

".input-group-addon .glyphicon-remove, .input-group-addon .fa-times"

instead of 

".input-group-addon .glyphicon-remove .fa-times"

Adapted to bootstrap v2 too

js/bootstrap-datetimepicker.js

@@ -62,7 +62,7 @@
 		this.bootcssVer = options.bootcssVer || (this.isInput ? (this.element.is('.form-control') ? 3 : 2) : ( this.bootcssVer = this.element.is('.input-group') ? 3 : 2 ));
 
 		this.component = this.element.is('.date') ? ( this.bootcssVer == 3 ? this.element.find('.input-group-addon .glyphicon-th, .input-group-addon .glyphicon-time, .input-group-addon .glyphicon-calendar, .input-group-addon .glyphicon-calendar, .input-group-addon .fa-calendar, .input-group-addon .fa-clock-o').parent() : this.element.find('.add-on .icon-th, .add-on .icon-time, .add-on .icon-calendar .fa-calendar .fa-clock-o').parent()) : false;
-		this.componentReset = this.element.is('.date') ? ( this.bootcssVer == 3 ? this.element.find('.input-group-addon .glyphicon-remove .fa-times').parent() : this.element.find('.add-on .icon-remove .fa-times').parent()) : false;
+		this.componentReset = this.element.is('.date') ? ( this.bootcssVer == 3 ? this.element.find(".input-group-addon .glyphicon-remove, .input-group-addon .fa-times").parent():this.element.find(".add-on .icon-remove, .add-on .fa-times").parent()) : false;
 		this.hasInput = this.component && this.element.find('input').length;
 		if (this.component && this.component.length === 0) {
 			this.component = false;