Added int widget

IPython/html/static/notebook/js/widgets/int.js

@@ -0,0 +1,4 @@
+require(["notebook/js/widget"], function(){
+    var IntWidgetModel = IPython.WidgetModel.extend({});
+    IPython.notebook.widget_manager.register_widget_model('IntWidgetModel', IntWidgetModel);
+});

IPython/html/widgets/__init__.py

@@ -4,6 +4,7 @@ from bool import BoolWidget
 from container import ContainerWidget
 from float import FloatWidget
 from float_range import FloatRangeWidget
+from int import IntWidget
 from int_range import IntRangeWidget
 from selection import SelectionWidget
 from string import StringWidget

IPython/html/widgets/int.py

@@ -0,0 +1,10 @@
+from base import Widget
+from IPython.utils.traitlets import Unicode, Int, Bool, List
+
+class IntWidget(Widget):
+    target_name = Unicode('IntWidgetModel')
+    default_view_name = Unicode('IntTextView')
+    _keys = ['value', 'disabled']
+
+    value = Int(0) 
+    disabled = Bool(False) # Enable or disable user changes