Fix feature branding not showing in about window and update old info

de.prob.core.tests/META-INF/MANIFEST.MF

de.prob.core/META-INF/MANIFEST.MF

de.prob.eventb.disprover.core/META-INF/MANIFEST.MF

de.prob.eventb.disprover.ui/META-INF/MANIFEST.MF

de.prob.eventb.disprover.ui/about.ini

de.prob.symbolic/about.ini

de.prob.symbolic/build.properties

de.prob.ui/META-INF/MANIFEST.MF

de.prob.ui/about.ini

de.prob.ui/about.properties

de.prob.ui/build.properties

de.prob.ui/src/de/prob/ui/eventb/ClassicPreferences.java

de.prob2.disprover.feature/feature.xml

de.prob2.feature/feature.xml

de.prob2.symbolic.feature/feature.xml