Document workaround for JBIDE-25146 - Eclipse annotation processing not enabled by default

Some of the EAP quickstarts don't work correctly in devstudio and require a workaround described in JBIDE-25146 :

The workaround was to add this property to the project POM file:

    <properties>
        <!--JBEAP-9389 workaround for buggy eclipse -->
        <m2e.apt.activation>jdt_apt</m2e.apt.activation>
    </properties>

They have the workaround in place for the quickstarts, but perhaps we could document this for other users if they come across this issue. I'm not sure what the right place would be. Release notes?