Do not throw NPE when asking for a null propertyId (#10445)

Change-Id: If788d84c66d640368989e443394505600ad12439
Removed legacy toString implementations as promised in 7.0 (#10916)

Change-Id: I0e63f4cb3480c88b2c79996e23a2e89acce95b28
Merge branch '7.0'

Change-Id: Ie463ba65a7b77b04332eeb791d2903893c65facf
Include version number in javadoc index page of vaadin-all zip

Change-Id: I8b370918f99e6a04322fb95e20633c4e740cce55
Merge branch '7.0'

Change-Id: I5cd71ac330a1c400545555db9290dd256da784a1
Made getServlet and getPortlet public (#10882)

This change enables developer to get a reference to the VaadinServlet/VaadinPortlet class without using thread locals (#10882)

Change-Id: I7cb87b6ddb6f2ac3c46f7652a807363b336cdc4e
Merge "Made getServlet and getPortlet public (#10882)"
Merge "Do not throw NPE when asking for a null propertyId (#10445)"
Merge of (#6160) and (#10470) to Vaadin 7.

Cache handling update.

Change-Id: I81ba74d457eb484f6f2c350629534ab284ead7b7
Merge "Merge of (#6160) and (#10470) to Vaadin 7." into 7.0