Knockstrap 0.4.0

-Added unit tests via jasmine for all bindings and utility functions
-Added throwing exception, when binding is used with incompatible values
-Added unchecking of buttons for radio binding, when no buttons have passed value
-Fixed checkboxed don't have 'checked' property set to true, when checboxes are clicked for checkbox binding
-Made 'footer' property optional for modal binding
-Fixed carousel binding bugs
-Removed close callback from alert binding ('close.bs.alert' event from bootstrap can be used instead)
-Updated alert binding default template: now it require only 'message' property, 'type' property doesn't depend on template data
-Updated unwrapPoperties function: now if you pass not objects, it returns them without transformation into objects.
-Added nuget package manager support