* Clicking on DateField pop-up should select Month/Year

In Year/Month Resolution DateField should select the value, when user clicks on pop-up

Fixes #8447

* Update to 8.9-SNAPSHOT

* update in bom module

- When a TabSheet is scrolled to an end and then resized bigger, more
tabs should appear to the left.
- When a TabSheet is right-aligned in Valo and scrolled to the end, last
tab shouldn't be partially hidden behind the scroller buttons.
- Shouldn't allow attempts to scroll into directions where there is
nothing left to scroll to, even if the current tab isn't fully visible.

Fixes #807

- Multiple headers shouldn't stack behind each other.
- Body rows shouldn't get stuck to default row height.
- Compatibility version's hidable row selector shouldn't try to
calculate row heights based on rows that haven't been added to DOM yet.

Fixes #7674

* Changed the way resources, themes, and widgetsets are registered to the HttpService by only using the VaadinResourceTrackerComponent

Fixes #9787

* ColorTextField, helper methods, and regex for validating and handling text input

* Refactored structure to avoid creating new component for validation

* Style to adapt to error indicator

* Tests for validating input in ColorPickerPreview component's TextField

* Merge branch 'master' into colorpicker_validation

* Fix path to server class

* Fix test: Submit the new value

* Fix test: ignore Phantom JS

* Fix hsl+hsla validation patterns to accept '%', test value tweaking

* Merge branch 'master' of github.com:vaadin/framework into colorpicker_validation

* Fix: remove warning when color is updated from elsewhere

* Revisions: input validation only once, Logging level WARN

* Revisions: unit tests for color pattern matching

* Revisions: moved parsing to utility class, tests for parsing all accepted input formats

* Fixed import in tests, comments

* Revisions: Logger as constant, ignore utility class in serialization test

* Corner case tests

* Revisions: protected method for parsing error text, fix to test

* Revisions: NPE fix

Fixes #8918

* adds simple fix for missing label text in grid select checkboxes

* updated comment and wording

Add additional class names and style to components and error indicators to distinguish different error levels.

Vaadin 8 implementation of #9816. Cherry picked changes and added compatibility package component changes and tests.

Resolves #3139

Resolves #9644

Rename the vaadin-icons.scss to allow other libsass to compile the project successful.

Fixes #9703

Fixes #9170

Fixes #9637

Move remaining button and link related styles from _global to _nativebutton and _link.

* Enable row height setting for Tree
* Add content mode for captions
* Align expander element by default to top

The content mode allows use of preformatted and
HTML captions that bring value to row height

Fixes #9411

Fixes #7765

Now the DnD events are listened from tablewrapper element,
which contains also grid's header and footer, making it possible to
drop on top of them.

Fixes #9310

Fixes #9311

Also makes sure that the drop location and target row return something sensible in drop event.
Clarifies docs on drop location.

* Make it possible for grid drop target to accept dragged data when grid is empty (#9068)
* Make return type of getDropTargetRow() optional

- Rename OSGi to Osgi in class names.
- Rename VaadinOSGiPortlet to OSGiVaadinPortlet for consistency with
Spring, CDI etc. add-ons
- Add missing javadoc

Fixes #9121

Doesn't fix #9261, drag image missing on Safari when dragging grid row because
that has position: absolute and offset.

Removes background color from Tree, adds release notes mention, JavaDoc updates.

This patch introduces a Tree component, implemented as a Composite
using TreeGrid. As initial version of the component, some functionality
of the old Tree component has been left out for now.

Partly addresses #8617

Adds RequiredExecutionEnvironment and License fields and renames some
bundles (SymbolicName) for backwards compatibility.

Use bnd-maven-plugin instead of maven-bundle-plugin and helper class, and
add support for publishing static resources such as themes and widgetsets.