Button.

Signed-off-by: Manolo Carrasco <manolo@apache.org>

Signed-off-by: Manolo Carrasco <manolo@apache.org>

Signed-off-by: Manolo Carrasco <manolo@apache.org>

Signed-off-by: Manolo Carrasco <manolo@apache.org>

 When creating a new object in the getter it should be added
 to the parent json.

Handle return values of setup and tearDown
Changed SpecialEvent API so as we use the Element instead of
the EventListener

- Implementing specials focusin focusout. Fixes #11

- SpecialEvents have an API with three methods: setup tearDown add remove
- Migrated mouse special events to use this API

When using GWT jsInterop to wrap native objects using @JsType
interfaces, casting between those elements to gwt Element fails.
We solve that doing a jsni casting.

- Adding tests for interaction with JsTypes.
- Fixing tests when running them in real browsers

This facilitates customized filters and selectors.

As a bonus removed a couple of deprecated use of JsRegexp

- Making tests pass
- Fixing a couple of issues failing with new RegExp.
- Adding profiles to run tests in prod mode

Adding missing create method in super GQ.
Deprecating IFrameWithDocTypeLinker so as we can remove soon
We dont force to load it anymore

Include only the elemental.json stuff for JVM needed to run
GQuery JsonBuilders in server side without depending on anything but
gwtquery.jar.

Adding org.json dependency since we depend on it, and 2.7
uses a rebased version of android.json. We will have this
dependency in snapshot until we replace json usage in server
side, but we have to remove before releasing gquery.