Merge branch '3776' into 'master'

.gitmodules

...ng.base.ui/src/org/fortiss/tooling/base/ui/utils/.ratings

...c/org/fortiss/tooling/base/ui/utils/ContextMenuUtils.java

org.fortiss.tooling.ext.variability.ui/.classpath

org.fortiss.tooling.ext.variability.ui/.project

...variability.ui/.settings/org.eclipse.core.resources.prefs

...g.ext.variability.ui/.settings/org.eclipse.jdt.core.prefs

...ing.ext.variability.ui/.settings/org.eclipse.jdt.ui.prefs

...g.ext.variability.ui/.settings/org.eclipse.m2e.core.prefs

org.fortiss.tooling.ext.variability.ui/META-INF/MANIFEST.MF

org.fortiss.tooling.ext.variability.ui/build.properties

...ortiss.tooling.ext.variability.ui/html/developer/.ratings

...ling.ext.variability.ui/html/developer/documentation.html

...ss.tooling.ext.variability.ui/icons/checkbox_disabled.gif

...iss.tooling.ext.variability.ui/icons/checkbox_enabled.gif

...fortiss.tooling.ext.variability.ui/icons/deactivated2.png

org.fortiss.tooling.ext.variability.ui/icons/optional.png

org.fortiss.tooling.ext.variability.ui/icons/product.gif

org.fortiss.tooling.ext.variability.ui/icons/productlist.gif

org.fortiss.tooling.ext.variability.ui/plugin.properties