In some places, getWidget() is called many times, and I believe this can
have a litte performance improvement, since in some cases
super.getWidget() is called more than once.

Also improve naming by replacing one-letter variable names.

* Fix typos

* Fix

* Scheduler.ScheduledCommand and RepeatingCommand to be lambda

* Restore <table> in javadoc

* Fix docs

Also includes minor other javadoc and formatting fixes.

Converts Notification to an Extension and adds support for listening to the closing of notifications.

Fixes #888

* Navigator now by default uses pushState and normal URLs

* added documentation for pushState and updated Navigator documentation

* improving docs etc, adding one TODO to be solved before merging

* pushState/replaceState no work better with changing titles

* Making uri fragment navigator work when not using specially mapped UI

* Revert to older default, add annotation for selecting

* Fix tests, add null checks

* Reorder if-clause, fix tests

* Revert unnecessary test change

* Use correct variable in UI, fix test clean up

* Updates to JavaDocs, fix some methods and tests

* Add comments, fix test ui, TODO for fallbacks

* Navigation documentation, JavaDocs, removed TODOs

* Documentation fixes

* Improve JavaDocs

* Fix link name in documentation

* Improve throws declaration in getLocation

* Change documentation about the PushState based navigation

* Add since tags

* Add since tags for UI

Asks the polyfill to always center the drag image based on the touch coordinates.
Also temporarely removes the transform offset for the row.

First step of mobile DND support.

- Add mobile html5 dnd support using polyfill
- Adds a switch for enabling mobile html5 dnd support
- Adds polyfill only when needed
- Ignore native Android Chrome drag start because doesn't work properly
(no dragend event fired)
- Add documentation on enabling mobile HTML5 DnD support
- Add mention of drag-drop-polyfill license
- Fixed issue in polyfill when not using "snapback"
- Add mention of forked polyfill

Fixes #9174

* Added support for HTML5 push/replaceState for proper deep linkin features

* Automated test script now works at least on chrome

* Uses html5 push/popstate to implement uri fragment feature

* fire legacy fragment change events also via popstate events rpc calls
* send new fragments via pushstate mechanism

* formatting

* Formatting and adding test and workaround for IE bug

* Formatting and depracated UriFragmentListener

* Aligned naming in the new API

* Ignored IE due to web driver bug

Tested a workaround with javascript based window.location.href fetch,
but that don’t seem to work stable enough.

Change-Id: Ibb3b52b652d77a1bfa786417b1c92fd0a578035f

Change-Id: I259c659987b5b15b354e16d0be1523f4ede809f0

All Vaadin components use the old HandlerRegistration except Grid
renderers and ServerConnector. Since most Vaadin components extend GWT
components we can't change to the bindary version until GWT does, so the
only way we can unify the usage is using the old version.

Change-Id: I82a5b66df977fe0e7bcab7e981332d0cf7e0bdbf

All components are now in immediate mode by default.
V7 compatibility components will use AbstractLegacyComponent that has immediate.
V7 ColorPickerPopup will not have setImmediate, since it extends V8 Window,
which is not in V7 compatibility packages.
Removed OutOfSync and ResynchronizeAfterAsyncRemoval Tests,
since those tested UI in not immediate mode, which is invalid now.
Removed WindowResizeListener, LazyWindowResize, test UIs,
since both used immediate and there were no test run for either.

Change-Id: Ie1c8cfa4c48461db944ff9b13efe8473c5a3298f

Does not modify compatibility packages to keep to closer to Vaadin 7.7

Change-Id: Ic9c4944eb90218290545a04ecd7455eb63910012

Change-Id: I2ca0b41c3cc2ed851646ced2e0693a93b1853c95

Change-Id: I6485dee1ebba12b180a9063ed4b530f7dc63cd77

Change-Id: I4c852b7f9928e190572876690d5bef1234494a5d

Change-Id: I33f1cc33969ff74a95b1b8cc0f2add589be5aae0

The server side needs to know the client has removed the connectors to
be able to do cleanup

Change-Id: Ic3d41cc5cbab035a53bf5c99496d74858c376e73

Change-Id: I36c426086a2b957f6f738d17470c499a01ddac3b