This patch updates server side add*Listener methods to return
a registration object and deprecates their corresponding
remove*Listener methods.
Additionally this patch removes add/removeListener methods which were
deprecated in 7.0.
Change-Id: I26ac5f11882512288fbbf601c7cb2aaff653ec76
Move and rename server classes which go into the compatibility package
* Use com.vaadin.v7
* Use the same class name as in Vaadin 7
* Use a "vaadin7-" declarative prefix for Vaadin 7 components
Change-Id: I19a27f3835b18980b91a4f8f9464b2adde1a5fd5
Reading properties of components should not set state to dirty (#14060).
Added Automatic Testcase. The testcase needs a default constructor,
which has been added.
The test also found an edge case in Form.java which has been corrected,
as well as one missing getState(false) in AbstractMedia.
Change-Id: Id764c9e1596123015a84f6c2a9507f03bde383b1