Added float widget

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

@@ -0,0 +1,4 b''
+require(["notebook/js/widget"], function(){
+    var FloatWidgetModel = IPython.WidgetModel.extend({});
+    IPython.notebook.widget_manager.register_widget_model('FloatWidgetModel', FloatWidgetModel);
+});
  No newline at end of file

IPython/html/widgets/float.py

@@ -0,0 +1,10 b''
+from base import Widget
+from IPython.utils.traitlets import Unicode, Float, Bool, List
+
+class FloatWidget(Widget):
+    target_name = Unicode('FloatWidgetModel')
+    default_view_name = Unicode('FloatTextView')
+    _keys = ['value', 'disabled']
+    
+    value = Float(0.0) 
+    disabled = Bool(False) # Enable or disable user changes

IPython/html/widgets/__init__.py

@@ -2,6 +2,7 b' from base import Widget, init_widget_js'
 
 from bool import BoolWidget
 from container import ContainerWidget
+from float import FloatWidget
 from float_range import FloatRangeWidget
 from int_range import IntRangeWidget
 from selection import SelectionWidget